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WO2016051844A1 - Appareil de séchage, procédé de séchage, ainsi que programme et appareil de formation d'images pour le séchage - Google Patents

Appareil de séchage, procédé de séchage, ainsi que programme et appareil de formation d'images pour le séchage Download PDF

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Publication number
WO2016051844A1
WO2016051844A1 PCT/JP2015/063492 JP2015063492W WO2016051844A1 WO 2016051844 A1 WO2016051844 A1 WO 2016051844A1 JP 2015063492 W JP2015063492 W JP 2015063492W WO 2016051844 A1 WO2016051844 A1 WO 2016051844A1
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WO
WIPO (PCT)
Prior art keywords
medium
drying
drying process
unit
condition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2015/063492
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English (en)
Japanese (ja)
Inventor
有太朗 地主
隆秀 岡崎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujifilm Corp
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Fujifilm Corp
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Filing date
Publication date
Application filed by Fujifilm Corp filed Critical Fujifilm Corp
Priority to JP2016551572A priority Critical patent/JP6082504B2/ja
Publication of WO2016051844A1 publication Critical patent/WO2016051844A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet

Definitions

  • the present invention relates to a drying processing apparatus, a drying processing method, a drying processing program, and an image forming apparatus, and more particularly to a drying processing technique for a medium having a liquid attached thereto.
  • An ink jet recording apparatus is known as an image forming apparatus using water-based ink.
  • fixing of ink onto a recording medium is promoted by subjecting the recording medium after drawing to a drying process.
  • Patent Document 1 describes an ink jet recording apparatus including a drying processing unit that performs a drying process on paper after image recording.
  • the drying processing unit described in the document employs a method of blowing hot air onto the paper.
  • Patent Document 2 describes an image forming apparatus including a medium drying apparatus that dries a recording medium on which an image is formed.
  • the medium drying apparatus described in this document has a configuration in which a plurality of combinations of IR heaters and hot air nozzles are arranged.
  • the medium drying apparatus described in this document realizes various processing conditions by appropriately adjusting the temperature and air volume of hot air.
  • IR is an abbreviation for infrared ray that represents infrared rays.
  • medium drying apparatus in this document corresponds to the term “drying processing unit” in this specification.
  • Patent Document 3 describes an image forming apparatus provided with a hot air current drying means for bringing a hot air current into contact with a paper sheet on which an image is formed and drying it by heating.
  • the hot air drying means described in the document is applied with a configuration in which the heater power supply amount and the air volume are controlled according to the paper thickness information, and the heating is performed with the appropriate heat amount and air flow according to the paper. Yes.
  • Patent Document 3 correspond to the terms of medium, drying processing unit, medium information, and air flow rate in this specification, respectively.
  • the ink jet recording apparatus described in Patent Document 1, the image forming apparatus described in Patent Document 2, and the image forming apparatus described in Patent Document 3 are all subject to deformation of the medium when drying processing conditions that promote drying are applied. It can happen.
  • the present invention has been made in view of such circumstances, and provides a drying processing apparatus, a drying processing method, a drying processing program, and an image forming apparatus capable of preventing deformation of the medium and obtaining a favorable dry state of the medium. For the purpose.
  • the first aspect includes a medium transport unit that transports a medium to be dried, a medium information acquisition unit that acquires thickness information of the medium to be dried, and a medium to be dried.
  • a heat irradiation drying processing unit that performs a drying process by heat irradiation
  • a blower drying processing unit that performs a drying process by blowing air on a medium to be dried, and an upstream air blower disposed on the upstream side in the medium conveyance direction
  • the drying process condition setting which sets the drying process condition according to the thickness of the drying process part and the downstream air blowing drying process part arrange
  • a heat drying process control unit that controls the drying process by the heat irradiation drying process unit based on the set drying process condition, and a transmission that controls the drying process by the blow drying process unit based on the set drying process condition.
  • Air drying A drying process condition setting unit which is a drying process condition applied to the thermal irradiation drying process unit, relatively reduces heat irradiation by the thermal irradiation drying process unit with respect to a relatively thin medium. And setting a drying processing condition for relatively increasing heat irradiation by the heat irradiation drying processing unit for a relatively thick medium, and is applied to at least the upstream side air drying processing unit of the air blowing drying processing unit
  • the air temperature of the upstream air blowing drying processing unit which is the temperature of the air blown from the upstream air blowing drying processing unit, the surface temperature of the medium being dried by the heat irradiation drying processing unit, or the heat irradiation drying It is a drying process condition set to a temperature range corresponding to the surface temperature of the medium after the drying process by the processing unit, and the volume of air blown per unit time discharged from the upstream air blowing drying process unit with respect to the relatively thin medium Increasing the blowing rate of a certain upstream
  • the drying process condition of the heat irradiation drying process unit and the drying process condition of the upstream blast drying process unit are set according to the thickness of the medium.
  • a drying process that sets at least a temperature range corresponding to the surface temperature of the medium during the drying process by the heat irradiation drying process part or the surface temperature of the medium after the drying process by the heat irradiation drying process part in the upstream blast drying process part
  • the second aspect is the drying processing apparatus according to the first aspect, wherein the drying processing condition setting unit is a drying process applied to the upstream blast drying processing unit as a drying processing condition applied to the downstream blast drying processing unit. Set conditions.
  • the drying process condition by the downstream-side air drying process unit is made common with the drying process condition by the upstream-side air drying process part, and the drying process based on the constant drying process condition is realized.
  • a 3rd aspect is a drying processing apparatus as described in a 1st aspect.
  • WHEREIN As a drying process condition applied to a ventilation drying process part, a drying process condition setting part is the ventilation volume and downstream ventilation drying of an upstream ventilation drying process part. The ratio with the ventilation volume of a process part is set.
  • the third aspect it is possible to correlate the drying process conditions of the upstream-side drying process unit and the process conditions of the downstream-side drying process unit.
  • a 4th aspect is a drying processing apparatus as described in a 3rd aspect.
  • WHEREIN A drying process condition setting part is less than 1 in the ventilation volume of an upstream ventilation drying process part as a drying process condition applied to a downstream ventilation drying process part. Set the air flow rate multiplied by the number of.
  • fluttering of the medium is prevented by lowering the air blowing amount of the downstream air blowing / drying processing unit than the air blowing amount of the upstream air blowing / drying processing unit.
  • a fifth aspect is a drying processing condition setting control table referred to by the drying processing condition setting unit in the drying processing apparatus according to any one of the first to fourth aspects, and defines the drying processing conditions for the thickness of the medium.
  • a drying process condition setting control table storage unit for storing a drying process condition setting control table.
  • the drying process condition setting control table includes a heat irradiation drying process condition setting control table that defines the drying process condition of the heat irradiation drying process part, and a blow drying process condition that defines the drying process condition of the blow drying process part. You may comprise from a setting control table.
  • the drying process condition setting control table storage unit stores a heat irradiation drying process condition setting control table storage unit in which a heat irradiation drying process condition setting control table is stored, and a blow drying process condition setting control table. You may comprise from a ventilation drying process condition setting control table memory
  • a sixth aspect is the drying processing apparatus according to any one of the first aspect to the fifth aspect, wherein the deformation suppression priority mode prioritizes the deformation suppression of the medium to be dried, the drying target surface of the medium to be dried, A mode setting unit for setting at least one of a flaw prevention priority mode for preventing scratches on the opposite surface and a film strength priority mode for prioritizing improvement of the strength of a film formed on a medium to be dried,
  • the drying processing condition setting unit changes at least one of the drying processing condition applied to the heat irradiation drying processing unit and the drying processing condition applied to the air blowing drying processing unit according to the set mode.
  • the sixth aspect it is possible to execute the drying process based on the drying process condition according to the set mode.
  • the mode setting in the sixth mode can be either manual setting or automatic setting.
  • a seventh aspect is the drying processing apparatus according to any one of the first to fifth aspects, in the processing region of the heat irradiation drying processing unit and the processing region of the blow drying processing unit, the drying process of the medium to be dried
  • a support part that supports the opposite side of the target surface, a pressure application part that applies pressure to the supported medium, and a pressure application condition that sets the pressure application condition of the pressure application part according to the acquired thickness of the medium
  • a pressure application control unit that controls the application of pressure by the pressure application unit based on the set pressure application condition, and the pressure application condition setting unit is a thickness in which the thickness of the medium to be processed is predetermined. If the pressure is less than the predetermined value, a pressure application condition for applying a pressure to bring the medium to be processed into contact with the support unit is set.
  • the medium to be processed is Away from To set the pressure applying conditions to apply a force.
  • the pressure condition suitable for the pressure applied to the medium during the drying process is set according to the thickness of the medium, the medium is deformed by the pressure applied to the medium, and the medium is damaged. Can be prevented.
  • the pressure applying unit includes a hole that generates a pressure applied to the medium to be processed on a surface that supports the opposite side of the surface to be dried of the support unit.
  • the medium is prevented from being deformed by sucking the medium from the hole of the support portion. Further, the medium is prevented from being damaged by the contact between the support portion and the medium by separating the medium from the support portion by discharging from the hole of the support portion.
  • the ninth aspect is a pressure application condition control table referred to by the pressure application condition setting unit in the drying processing apparatus according to the seventh aspect or the eighth aspect, and a pressure application condition that defines the pressure application condition with respect to the thickness of the medium
  • a pressure application condition control table storage unit for storing the control table is provided.
  • the pressure application condition control table according to the ninth aspect and the drying treatment condition control table according to the fifth aspect may be configured integrally.
  • the pressure application condition control table storage unit in the ninth aspect may also be used as the drying processing condition setting control table storage unit described in the fifth aspect.
  • a tenth aspect is the drying processing apparatus according to any one of the seventh to ninth aspects, wherein the deformation suppression priority mode prioritizes the deformation suppression of the medium to be dried, the drying target surface of the medium to be dried,
  • a pressure setting condition setting unit is provided with a mode setting unit for setting a flaw prevention priority mode for preventing flaws on the opposite surface and a film strength priority mode for prioritizing improvement of the strength of the film formed on the medium to be dried. The pressure application condition applied to the pressure application unit is changed according to the set mode.
  • the eleventh aspect is the drying apparatus according to any one of the first to tenth aspects, wherein the surface temperature of the medium during the drying process by the heat irradiation drying process part or the medium after the drying process by the heat irradiation drying process part
  • the temperature information acquisition part which acquires the information of this temperature is provided.
  • an aspect including a temperature measuring unit that measures the temperature of the medium is applicable.
  • a mode including a temperature prediction unit that predicts the temperature of the medium from the drying processing conditions of the heat irradiation drying processing unit.
  • a medium information acquisition step for acquiring information on the thickness of a medium to be dried, and heat irradiation drying for transporting the medium to be dried and performing a drying process on the medium to be dried by heat irradiation
  • This is a processing step and a blow drying process step for conveying a medium to be dried and subjecting the medium to be dried to a drying process by blowing air, and blowing air to the medium to be dried at the upstream side in the medium conveying direction.
  • an upstream blast drying process including an upstream blast drying process for performing a drying process by the process, and a downstream blast drying process for performing a drying process by blowing on the medium to be dried on the downstream side in the medium transport direction.
  • a drying treatment condition setting step for setting a drying treatment condition according to the thickness of the medium includes a drying treatment condition applied to the heat irradiation drying treatment step, and Drying process conditions that relatively reduce heat irradiation in the heat irradiation drying process for relatively thin media and relatively increase heat irradiation in the heat irradiation drying process for relatively thick media Of the upstream blast drying process, which is the temperature of the blast released in the upstream blast drying process, as a drying process condition applied to at least the upstream blast drying process of the blast drying process.
  • a medium conveying means for conveying a medium to be dried, a medium information obtaining means for obtaining information on the thickness of the medium to be dried, and a drying process by heat irradiation on the medium to be dried
  • the heat irradiation drying processing means for performing the drying process
  • the air blowing drying processing means for performing the drying process by blowing on the medium to be dried
  • the upstream air blowing drying processing means disposed on the upstream side in the medium transport direction, and the transport of the medium
  • the blower drying process means provided with the downstream blow drying process means arranged on the downstream side in the direction, the drying process condition setting means for setting the drying process condition according to the thickness of the acquired medium, the set drying process condition Thermal drying processing control means for controlling the drying process by the thermal irradiation drying processing means based on, the air blow for controlling the drying process by the blow drying process means based on the set drying processing conditions
  • a drying processing program that functions as a drying processing control unit, wherein a computer is used as a drying processing condition applied
  • the drying process conditions to relatively increase the heat irradiation by the heat irradiation drying processing means for a relatively thick medium, and apply it to at least the upstream air drying processing means among the air blowing drying processing means
  • the air temperature of the upstream air drying process means which is the temperature of the air blown from the upstream air blowing process means, is the surface temperature of the medium during the drying process by the heat irradiation drying process means, or heat It is a drying process condition that is set in a temperature range corresponding to the surface temperature of the medium after the drying process by the irradiation drying process means, and the upstream side air drying is performed on a relatively thin medium.
  • a drying process that increases the air flow rate of the upstream air blowing / drying processing means, which is the volume of air blown per unit time released from the processing means, and decreases the air flow rate of the upstream air blowing / drying processing means for a relatively thick medium.
  • a drying processing program that functions as a drying processing condition setting means for setting conditions is provided.
  • a fourteenth aspect includes a drawing unit that forms an image on a medium, and a drying processing device that performs a drying process on the formed image.
  • the drying processing device transports a medium to be dried.
  • a medium information acquisition unit that acquires information on the thickness of a medium to be dried, a heat irradiation drying unit that performs drying by heat irradiation on the medium to be dried, and a medium to be dried
  • a blower drying processing unit that performs a drying process by blowing air, and includes an upstream blower drying processing unit arranged on the upstream side in the medium transport direction and a downstream blower drying processing unit arranged on the downstream side in the medium transport direction.
  • a drying process condition the heat irradiation by the heat irradiation drying processing unit is relatively decreased for a relatively thin medium, and the heat irradiation by the heat irradiation drying processing unit is relatively increased for a relatively thick medium.
  • the upstream air-drying processing unit that is the temperature of the air discharged from the upstream air-air-drying processing unit It is a drying process condition for setting the blowing temperature to a temperature range corresponding to the surface temperature of the medium during the drying process by the heat irradiation drying process part or the surface temperature of the medium after the drying process by the heat irradiation drying process part.
  • an image forming apparatus for setting a drying processing condition for reducing a blowing amount of a drying processing unit.
  • the drying treatment conditions of the heat irradiation drying processing unit and the drying processing conditions of the upstream air blowing drying processing unit are set according to the thickness of the medium, deformation of the medium due to the difference in the thickness of the medium is suppressed. Thus, a good dry state of the medium can be obtained.
  • a drying process that sets at least a temperature range corresponding to the surface temperature of the medium during the drying process by the heat irradiation drying process part or the surface temperature of the medium after the drying process by the heat irradiation drying process part in the upstream blast drying process part
  • FIG. 1 is an overall configuration diagram of a drying processing apparatus according to a first embodiment of the present invention.
  • FIG. 2 is a block diagram of the drying processing unit shown in FIG.
  • FIG. 3 is a block diagram of a control system of the drying processing apparatus shown in FIG.
  • FIG. 4 is a flowchart showing a control flow of the drying processing method according to the embodiment of the present invention.
  • FIG. 5 is a graph showing the relationship between the IR heater duty setting and the measured film surface temperature.
  • FIG. 6A is an explanatory diagram schematically illustrating the measurement target surface of the medium.
  • FIG. 6B is a view of the medium as viewed from the side.
  • FIG. 7 is a graph showing the relationship between the film surface temperature and the amount of water on the medium.
  • FIG. 1 is an overall configuration diagram of a drying processing apparatus according to a first embodiment of the present invention.
  • FIG. 2 is a block diagram of the drying processing unit shown in FIG.
  • FIG. 3 is a block diagram of a control
  • FIG. 8 is a graph showing the relationship between the thickness of the medium and the amount of water.
  • FIG. 9 is a graph showing the relationship between the transport distance of the medium and the film surface temperature.
  • FIG. 10 is a graph showing the relationship between the transport distance of the medium and the film surface temperature in the drying process in which the setting of the blowing temperature of the air knife and the setting of the blowing amount are different.
  • FIG. 11A is an explanatory diagram showing the setting of the drying process condition with respect to the thickness of the medium.
  • FIG. 11B is an explanatory diagram showing the setting of the drying process condition with respect to the thickness of the medium when the thickness of the medium can be changed in multiple stages.
  • FIG. 12 is a flowchart showing the flow of control of the drying method according to the second embodiment.
  • FIG. 13A is an explanatory diagram showing pressure setting with respect to the thickness of the medium in the drying method according to the second embodiment.
  • FIG. 13B is an explanatory diagram illustrating pressure setting with respect to the thickness of the medium in consideration of the case where liquid is attached to both sides of the medium.
  • FIG. 13C is an explanatory diagram of a table that defines the relationship between the thickness of the medium and the pressure setting.
  • FIG. 14 is a block diagram of a control system of the drying processing apparatus according to the third embodiment.
  • FIG. 15 is a flowchart showing a control flow of the drying method according to the third embodiment.
  • FIG. 16 is an explanatory diagram showing the setting of the drying process condition with respect to the thickness of the medium according to the third embodiment.
  • FIG. 17 is a flowchart showing the flow of control of the drying method according to the fourth embodiment.
  • FIG. 18 is an explanatory diagram for changing the setting of the drying process condition according to the fourth embodiment.
  • FIG. 19 is an explanatory diagram of a drying process condition control table showing a configuration example of the drying process condition setting control table.
  • FIG. 20 is an overall configuration diagram of an image forming apparatus according to an embodiment of the present invention.
  • FIG. 21 is a block diagram showing a schematic configuration of a control system of the image forming apparatus shown in FIG.
  • FIG. 22 is a configuration diagram of the ink jet head shown in FIG. 20, and is a perspective plan view of an ejection surface for ejecting ink droplets.
  • FIG. 23 is a perspective view of the head module, including a partial cross-sectional view.
  • 24 is a plan perspective view of the ejection surface of the head module shown in FIG.
  • FIG. 25 is a cross-sectional view showing the internal structure of the head module.
  • FIG. 1 is an overall configuration diagram of a drying processing apparatus according to a first embodiment of the present invention.
  • the drying processing apparatus 20 shown in the figure is a drying processing apparatus that performs a drying process on a medium P to which a liquid is attached.
  • the present invention can be applied to a drying processing apparatus that dries a medium on which an image is formed by an ink jet recording apparatus.
  • the drying processing apparatus 20 illustrated in FIG. 1 includes a medium transport unit 64 that transports a medium P to be dried, a transport guide 72 that supports the medium P transported by the medium transport unit 64, and a drying process that performs a drying process on the medium P.
  • the medium transport section 64 functioning as a medium transport means has a structure in which an endless chain 64C is wound around the first sprocket 64A and the second sprocket 64B.
  • the chain 64C is supported by a chain guide (not shown).
  • the first sprocket 64A, the second sprocket 64B, and the chain 64C are configured in pairs.
  • the pair of first sprockets 64A, the pair of second sprockets 64B, and the pair of chains 64C are disposed on both sides of the medium P in the width direction.
  • the width direction of the medium P is a direction orthogonal to the transport direction of the medium P.
  • the orthogonal term is regarded as the same as when the angle between the two directions is 90 degrees when the angle between the two directions is less than 90 degrees and when the angle between the two directions exceeds 90 degrees. Substantial orthogonality can be included.
  • the term “medium transport direction” may be used as the term representing the transport direction of the medium P.
  • the term of the width direction of a medium may be used as a term showing the direction orthogonal to a medium conveyance direction.
  • the medium P supported by the gripper 64D attached to the chain 64C is conveyed by rotating one of the pair of first sprockets 64A or the pair of second sprockets 64B to run the pair of chains 64C.
  • a gripper support member (not shown) is stretched around the pair of chains 64C.
  • a plurality of grippers 64D are arranged corresponding to the width of the medium P.
  • the gripper 64D has a structure in which the front end or the rear end of the medium P is sandwiched between a claw portion (not shown) and a claw base (not shown) to hold the front end or the rear end of the medium P.
  • the conveyance guide 72 that functions as a support unit and a support unit and constitutes a pressure applying unit supports a side surface opposite to the drying target surface of the medium P conveyed in the processing region of the drying processing unit 73.
  • the conveyance guide 72 has a length corresponding to the entire width of the medium P in a direction orthogonal to the medium conveyance direction. When a plurality of sizes of media are used, the full width of the medium P having the maximum full width is set.
  • the transport guide 72 is provided with a plurality of holes (not shown) on the medium support surface that supports the medium P. Each of the plurality of holes communicates with a flow path (not shown) provided inside the conveyance guide 72. An internal flow path provided inside the conveyance guide 72 is connected to a pressure generator (not shown).
  • the pressure generating device generates a pressure directed from the outside of the hole to the inside of the hole or a pressure directed from the inside of the hole to the outside of the hole with respect to the plurality of holes provided on the medium support surface of the conveyance guide 72. .
  • the medium P When the suction pressure is generated in the plurality of holes, the medium P is sucked to the medium support surface of the transport guide 72. When a pressure for discharging air from the plurality of holes is generated, the medium P is separated from the medium support surface of the transport guide 72.
  • a circular shape, an elliptical shape, a polygonal shape, or the like can be applied as the opening shape of the plurality of holes.
  • the drying processing unit 73 is a position facing the conveyance guide 72 and is disposed at a position opposite to the conveyance guide 72 of the chain 64C.
  • the drying processing unit 73 is a medium P transported by the medium transporting unit 64, and performs a drying process on the medium P supported by the transport guide 72.
  • the configuration of the drying processing unit 73 and details of the drying processing will be described later.
  • the fixing processing unit 74 is disposed on the downstream side of the drying processing unit 73 in the medium transport direction.
  • the fixing processing unit 74 performs fixing processing on the medium P that has been subjected to drying processing by the drying processing unit 73.
  • fixing treatment fixing treatment by irradiation of actinic rays in image formation using ink that is cured by irradiation of actinic rays such as ultraviolet rays, fixing treatment by heating, fixing treatment by pressing, heating and pressing are used in combination.
  • fixing processing fixing processing.
  • the fixing processing unit 74 can be omitted.
  • the conveyance guide 75 is a position facing the fixing processing unit 74 and is disposed on the opposite side of the chain 64C from the fixing processing unit 74.
  • the conveyance guide 75 supports the medium P that is conveyed in the processing area of the fixing processing unit 74.
  • the conveyance guide 75 may have the same structure and configuration as the conveyance guide 72.
  • the paper delivery tray 76 accommodates a medium P that has been subjected to a drying process. Since the distance between the sheet discharge tray 76 and the medium transport unit 64 increases as the number of loaded media increases, the distance between the position where the medium is discharged and the position where the medium is loaded is within a certain range. To be kept.
  • the inclined structure is applied to the conveyance path of the medium P in the processing area of the fixing processing unit 74.
  • the conveyance path of the medium P in the processing area of the fixing processing unit 74 has a structure for conveying the medium P in the horizontal direction. You may apply.
  • a medium supply unit that delivers the medium P to be processed to the medium transport unit 64 is provided.
  • the medium supply unit is shown in FIG.
  • FIG. 2 is a block diagram of the drying processing unit 73 shown in FIG.
  • the drying processing unit 73 includes an IR heater 73A, an upstream air knife 73C, and a downstream air knife 73D.
  • the IR heater 73A functions as a heat irradiation drying processing unit and a heat irradiation drying processing means.
  • the upstream air knife 73C functions as a blower drying processing unit, a blower drying processing unit, an upstream blower drying processing unit, and an upstream blower drying processing unit.
  • the downstream air knife 73D functions as a blower drying processing unit, a blower drying processing unit, a downstream blower drying processing unit, and a downstream blower drying processing unit.
  • the IR heater 73A, the upstream air knife 73C, and the downstream air knife 73D are arranged in order from the upstream side in the medium conveyance direction along the medium conveyance direction.
  • 73A, upstream air knife 73C, IR heater 73A, downstream air knife 73D, IR heater 73A, and downstream air knife 73D are arranged in this order.
  • the IR heater 73A and the upstream air knife 73C, or the IR heater 73A and the downstream air knife 73D are alternately arranged.
  • the terms of the upstream side or the downstream side are omitted, and both are described as the air knife 73C, the air knife 73D, or the air knives 73C and 73D. To do.
  • upstream or downstream terms when it is necessary to distinguish between the two, upstream or downstream terms are attached and described as upstream air knife 73C or downstream air knife 73D.
  • the drying processing unit 73 can change the drying processing condition of the upstream air knife 73C and the drying processing condition of the downstream air knife 73D.
  • the IR heater 73A irradiates heat according to the set duty.
  • the duty is relatively increased, the irradiation heat amount is relatively increased, and when the duty is relatively decreased, the irradiation heat amount is relatively decreased.
  • the duty of the IR heater 73A is the percentage of the period during which the IR heater 73A operates within the unit period.
  • the air knives 73C and 73D have their blast temperatures adjusted according to the setting of the blast temperature, which is an aspect of the drying process conditions.
  • the air knives 73C and 73D have their blast volumes adjusted in accordance with the blast volume settings that are one aspect of the drying process conditions.
  • FIG. 3 is a block diagram of a control system of the drying processing apparatus 20 shown in FIG.
  • the drying processing apparatus 20 shown in the figure includes a system controller 300, a conveyance control unit 310, a medium supply control unit 312, an IR heater control unit 320, an air knife control unit 321, a fixing process control unit 322, a medium discharge control unit 323, and a pressure control. Part 324 and the like.
  • the drying processing apparatus 20 includes a medium information acquisition unit 330, a drying processing condition setting unit 332, a display unit 334, and a table storage unit 336.
  • the system controller 300 functions as an overall control unit that performs overall control of each unit of the drying processing apparatus 20, and also functions as an arithmetic unit that performs various arithmetic processes.
  • the system controller 300 includes a CPU 300A, a ROM 300B, and a RAM 300C.
  • CPU is an abbreviation for Central Processing Unit
  • ROM is an abbreviation for Read Only Memory
  • RAM is an abbreviation for Random Access Memory.
  • the system controller 300 also functions as a memory controller that controls the writing of data to memories such as the ROM 300B and the RAM 300C, and the reading of data from these memories.
  • FIG. 3 illustrates an example in which the memory such as the ROM 300B and the RAM 300C is built in the system controller 300, but the memory such as the ROM 300B and the RAM 300C may be provided outside the system controller 300.
  • the transport control unit 310 controls the operation of the medium transport unit 64.
  • Examples of the control of the medium transport unit 64 include travel start control of the chain 64C, travel stop control of the chain 64C, travel speed control of the chain 64C, and operation control of the gripper 64D shown in FIG.
  • the medium supply control unit 312 shown in FIG. 3 controls the operation of the medium supply unit 69 in response to a command from the system controller 300.
  • Control of the medium supply unit 69 includes supply start control of the medium P and supply stop control of the medium P.
  • the medium supply unit 69 can be configured integrally with the medium transport unit 64.
  • the transport control unit 310 and the medium supply control unit 312 are configured integrally.
  • the configuration of the paper feeding unit 12 shown in FIG. 20 may be applied.
  • the medium discharge control unit 323 controls the operation of the paper discharge tray 76 that functions as a medium discharge unit in response to a command from the system controller 300.
  • the IR heater control unit 320 functioning as a heat drying process control unit and a heat drying process control unit controls the operation of the IR heater 73A according to a command from the system controller 300. That is, the IR heater control unit 320 operates the IR heater 73A according to the duty set as the drying process condition.
  • the air knife control unit 321 functioning as a blow drying process control unit and a blow drying process control unit controls the operation of the air knives 73C and 73D in response to a command from the system controller 300. That is, the air knife control unit 321 controls the operations of the air knives 73C and 73D according to the blowing temperature and the blowing amount set as the drying process conditions.
  • the fixing processing control unit 322 controls the operation of the fixing processing unit 74 in accordance with a command from the system controller 300.
  • the fixing processing control unit 322 controls the activation start, irradiation stop, and actinic light irradiation intensity.
  • the pressure application control unit 324 that functions as a pressure application control unit and a pressure application control unit controls the pressure applied to the medium P from the transport guide 72 in accordance with a command from the system controller 300. That is, the pressure control unit 324 controls the operation of the pressure generator connected to the internal flow path of the conveyance guide 72 according to the pressure application condition set corresponding to the drying process condition.
  • the operation control of the pressure generator includes switching between sucking the medium P into the transport guide 72 or discharging air from the transport guide 72 to separate the medium P from the transport guide 72.
  • the medium information acquisition unit 330 acquires information on the medium P that is the target of the drying process.
  • the information on the medium P to be dried includes at least information on the thickness of the medium P.
  • a mode for acquiring information on the medium P a mode in which the information is directly acquired from the medium P by measurement or the like, a mode in which the medium P is acquired from an information body attached to the cartridge in which the medium P is accommodated, or information is acquired by data communication
  • An aspect, the aspect which acquires the information input by the operator, etc. are mentioned.
  • Information bars include barcodes and RF tags.
  • the RF tag may be referred to as an IC tag or a wireless tag.
  • RF is an abbreviation for radio frequency.
  • IC is an abbreviation for Integrated Circuit.
  • the drying processing condition setting unit 332 performs various settings of the drying processing apparatus 20.
  • the setting of the drying processing apparatus 20 includes setting of drying processing conditions.
  • the drying process condition setting unit 332 can function as a pressure application condition setting unit. Details of the drying process conditions will be described later.
  • drying processing mode setting may be included as the setting of the drying processing apparatus 20.
  • the drying processing mode include a deformation suppression mode that prioritizes suppression of deformation of the medium, a scratch prevention priority mode that prevents scratches on the opposite side of the surface to be dried, and a film strength priority mode that prioritizes improvement of film strength. It is done.
  • drying processing condition setting unit 332 It is possible to cause the drying processing condition setting unit 332 to function as a mode setting unit. Examples of modes for setting the drying processing mode include automatic setting based on medium information, manual setting by an operator, and combined use of automatic setting and manual setting.
  • the drying processing condition setting unit 332 that enables manual setting includes a switch, a keyboard, a mouse, and the like that are operated by an operator.
  • the display unit 334 includes a display device such as a liquid crystal panel, and displays various setting information of the device or information such as abnormality information on the display device in response to a command from the system controller 300.
  • a setting screen for manually setting the mode may be displayed.
  • the touch panel type display device may be applied to the display unit 334, and the drying process condition setting unit 332 and the display unit 334 may be configured integrally.
  • the table processing unit 336 functioning as a drying process condition setting control table storage unit, a drying process condition setting control table storage unit, a pressure application condition control table storage unit, and a pressure application condition control table storage unit is used for various types of drying process control.
  • a control table is stored.
  • the IR heater control unit 320 and the air knife control unit 321 refer to various control tables stored in the table storage unit 336 via the system controller 300 and control the operations of the IR heater 73A and the air knives 73C and 73D, respectively. To do.
  • the program storage unit 338 stores various programs applied to the drying apparatus 20. Various programs stored in the program storage unit 338 are read out via the system controller 300 and executed in each unit of the apparatus.
  • Examples of various programs applied to the drying processing apparatus 20 include a drying processing program applied to the IR heater 73A and the air knives 73C and 73D.
  • FIG. 4 is a flowchart showing a control flow of the drying method according to the first embodiment of the present invention. If a drying process is started in start process S10, it will progress to medium information acquisition process S12. In the medium information acquisition step S12, at least information on the thickness of the medium P is acquired.
  • the medium thickness determining step S14 it is determined whether the medium P is a thin medium or a thick medium based on the acquired medium information.
  • the medium thickness determining step S14 is YES, the medium P is a thin medium, the process proceeds to the IR heater duty setting step S20, and the processing conditions of the IR heater 73A are set for the thin medium.
  • the process proceeds to the blower temperature setting step S22.
  • the blowing temperature setting step S22 the blowing temperature of the air knives 73C and 73D is set for a thin medium.
  • the flow proceeds to the air volume setting step S24, and the air volume of the air knives 73C and 73D is set for a thin medium.
  • the air flow rate of the air knives 73C and 73D is set, the process proceeds to the drying process step S40.
  • the process proceeds to the IR heater duty setting step S30, and the processing conditions of the IR heater 73A are set for a thick medium.
  • the process proceeds to the blowing temperature setting step S32.
  • the blowing temperature setting step S32 the blowing temperature of the air knives 73C and 73D is set for a medium having a thick thickness.
  • the flow proceeds to the air volume setting step S34, and the air blast volume of the air knives 73C and 73D is set for a thick medium.
  • the air flow rate of the air knives 73C and 73D is set, the process proceeds to the drying process step S40.
  • IR heater duty setting step S20, blowing temperature setting step S22, blowing amount setting step S24, IR heater duty setting step S30, blowing temperature setting step S32 and blowing amount setting step S34 function as a drying process condition setting step.
  • the drying treatment step S40 functions as a heat irradiation drying treatment step, an air blowing drying treatment step, an upstream air blowing drying treatment step, and a downstream air blowing drying treatment step.
  • the drying process is executed based on the duty that is the drying process condition of the IR heater 73A set according to the thickness of the medium P, the blowing temperature that is the drying process condition of the air knives 73C and 73D, and the blowing amount.
  • the process proceeds to the drying process continuation determination step S42.
  • the drying process continuation determination step S42 it is determined whether there is a medium to be processed next. If there is a medium P to be processed next, which is YES in the drying process continuation determination process S42, the process proceeds to the medium information acquisition process S12, and a series of processes from the medium information acquisition process S12 to the drying process S40 is executed.
  • the process proceeds to an end process S44.
  • the end process of the drying process control is executed.
  • the thickness of the medium P to be processed may be classified into three or more stages.
  • the processing conditions for the IR heater 73A, the air blowing temperature that is the processing condition for the air knives 73C and 73D, and the air flow amount for each classification. Is set.
  • the processing conditions for the IR heater 73A and the processing conditions for the air knives 73C and 73D When setting the processing conditions for the IR heater 73A and the processing conditions for the air knives 73C and 73D, the relationship between the thickness of the medium P to be processed, the processing conditions for the IR heater 73A, and the processing conditions for the air knives 73C and 73D is defined. It is possible to refer to the processed processing condition control table.
  • the processing condition control table referred to when setting the processing conditions of the IR heater 73A and the processing conditions of the air knives 73C and 73D is stored in the table storage unit 336 of FIG.
  • FIG. 5 is a graph showing the relationship between the IR heater duty setting and the measured film surface temperature.
  • FIG. 5 represents the duty setting of the IR heater 73A shown in FIG.
  • the duty of the IR heater 73A is described as IR duty.
  • the duty setting of the IR heater 73A is expressed as a percentage.
  • the vertical series in FIG. 5 shows the measured values of the film surface temperature.
  • the unit of the measured value of the film surface temperature is ° C.
  • the measurement value measured using a thermometer can be applied to the measurement value of the film surface temperature in FIG. Of course, you may apply the measured value measured using the other method.
  • FIG. 6 is an explanatory diagram of conditions for measuring the film surface temperature shown in FIG.
  • FIG 6 (A) is a diagram illustrating a measurement target surface P A of the medium P schematically.
  • FIG. 6B is a view of the medium P viewed from the side.
  • the film surface temperature shown in FIG. 5 is a temperature measurement value of the surface 422 of the solid image 420 formed on the print portion P B shown in FIG.
  • FIG 6 (A) to the measurement position 426 of the surface temperature of the printed portion P B shown is a position on the center position 424 in the width direction of the medium P, is at the center position of the medium conveying direction of the printed portion P B .
  • Measuring position 428 of the temperature of the non-printed portion P C is the center position of the medium conveying direction of the non-printed portion P C located at a position on the center position 424 in the width direction of the medium P.
  • reference numeral 400 denotes a case where the thickness of the medium P is 0.11 mm.
  • Reference numeral 402 denotes a case where the thickness of the medium P is 0.13 millimeters.
  • Reference numeral 404 denotes a case where the thickness of the medium P is 0.21 millimeters.
  • Reference numeral 406 denotes a case where the thickness of the medium P is 0.34 millimeters.
  • the duty setting of the IR heater 73A When the duty setting of the IR heater 73A is fixed, as shown in FIG. 5, the measured value of the film surface temperature decreases as the thickness of the medium P increases, and the measured value of the film surface temperature increases as the thickness of the medium P decreases. In order to make the film surface temperature constant, it is necessary to set the duty setting of the IR heater 73A higher as the thickness of the medium P increases.
  • FIG. 7 is a graph showing the relationship between the film surface temperature and the amount of water on the medium.
  • the horizontal series in FIG. 7 is the film surface temperature.
  • the unit of the film surface temperature is ° C.
  • a value predicted from the duty setting of the IR heater 73A of the thermometer can be used.
  • the measured value measured using the thermometer can also be used.
  • the vertical series in FIG. 7 is the amount of moisture on the medium.
  • the amount of water in FIG. 7 indicates that the amount of water increases as it goes upward in the figure, and the amount of water decreases as it goes down in FIG.
  • a measured value of a moisture meter can be used as the moisture content.
  • reference numeral 430 denotes the case where the thickness of the medium P is 0.09 mm.
  • Reference numeral 432 denotes a case where the thickness of the medium P is 0.11 millimeter.
  • Reference numeral 434 represents a case where the thickness of the medium P is 0.13 millimeters.
  • Reference numeral 436 represents a case where the thickness of the medium P is 0.21 mm.
  • Reference numeral 438 denotes a case where the thickness of the medium P is 0.34 millimeters. As shown in FIG. 7, the tendency of the relationship between the film surface temperature and the amount of water on the medium P varies depending on the thickness of the medium P.
  • FIG. 8 is a graph showing the relationship between the thickness of the medium and the amount of moisture.
  • FIG. 8 shows the relationship between the thickness of the medium P and the moisture content when the film surface temperature is fixed.
  • the horizontal series in FIG. 8 is the thickness of the medium P.
  • the unit of the thickness of the medium P is millimeter.
  • the vertical series is the amount of water on the medium.
  • the amount of water in FIG. 8 indicates that the amount of water increases as it goes upward in the figure, and the amount of water decreases as it goes down in FIG.
  • the moisture content can be measured by a moisture meter. As shown in FIG. 8, the target amount of water on the medium P varies depending on the thickness of the medium P.
  • the duty of the IR heater 73A shown in FIG. 2 according to the thickness of the medium P, a constant film surface temperature can be realized regardless of the thickness of the medium P.
  • the duty of the IR heater 73A is set to be high, and the drying treatment condition is set such that the amount of heat irradiation from the IR heater 73A is increased and the drying is relatively accelerated. .
  • the duty of the IR heater 73A is set to be low, and the drying process condition is set such that the amount of heat irradiation from the IR heater 73A is reduced and drying is relatively suppressed.
  • the duty of the IR heater 73A it becomes possible to realize a constant dry state of the medium regardless of the thickness of the medium P.
  • the film surface temperatures in the graphs shown in FIGS. 5, 7, and 8 are measured for one type of medium and ink.
  • FIG. 9 is a graph showing the relationship between the transport distance of the medium and the film surface temperature.
  • the horizontal series in FIG. 9 is the transport distance of the medium P.
  • the unit of the transport distance of the medium P is millimeter.
  • the transport distance of the medium P is a distance on the transport path of the medium P from the supply position of the medium P to the medium transport unit 64 in FIG.
  • the conveyance distance of the medium shown in FIG. 9 corresponds to the drying process period for the medium P.
  • FIG. 6A is referred to as appropriate.
  • the vertical series in FIG. 9 is the film surface temperature.
  • the unit of the film surface temperature is ° C.
  • a measured value measured using a thermometer can be applied to the film surface temperature in FIG.
  • the measurement position of the film surface temperature is the same as that of the graph shown in FIG.
  • Code 450 of FIG. 9 is a duty of the IR heater 73A is in when it is set relatively high, it plotted for each conveying distance temperature measurements of the printed portion P B shown in FIG. 6 (A).
  • Code 452 of FIG. 9 is a plot when the duty of the IR heater 73A is set relatively high, the temperature measurement of the non-printed portion P C each conveying distance.
  • Code 454 of FIG. 9 is a plot of the prior duty IR heater 73A is set relatively high, the temperature measurements of the printing portion P B for each conveying distance.
  • Code 456 of FIG. 9 is a duty of the IR heater 73A is prior to be set relatively high, it plotted for each conveying distance temperature measurements of the non-printed portion P C. That is, FIG. 9 shows the difference in film surface temperature before and after the duty of the IR heater 73A is set high.
  • the duty of the IR heater 73A Before the duty of the IR heater 73A is set high, the temperature difference between the surface temperature of the non-printed portion P C and the surface temperature of the printed portion P B and T 1, the duty of the IR heater 73A is set higher after the, when the temperature difference between the surface temperature of the non-printed portion P C and the surface temperature of the printed portion P B and the T 2, have a relationship of T 1 ⁇ T 2.
  • the film strength is an index representing the degree of ink fixing on the medium P. When the film strength is relatively high, it indicates that the ink is more fixed on the medium P. If the film strength is relatively small, it indicates that the ink is not fixed more on the medium P. The film strength can be improved by increasing the film surface temperature.
  • FIG. 10 is a graph showing the relationship between the transport distance of the medium and the film surface temperature in the drying process in which the setting of the blowing temperature of the air knives 73C and 73D and the setting of the blowing amount are different. 10, parts that are the same as or similar to those in FIG. 9 are given the same reference numerals, and descriptions thereof are omitted as appropriate. In the description using FIG. 10, FIG. 6A is referred to as appropriate.
  • Reference numeral 460 in FIG. 10 is a plot of the measured temperature values of the printed portion P B shown in FIG. 6A for each transport distance, and the setting of the air temperature of the air knives 73C and 73D and the setting of the air flow rate are the codes.
  • the temperature measurement value of the printed portion P B marked with 454 is changed with respect to the plot for each transport distance.
  • Code 462 of FIG. 10 is a plot for each conveying distance temperature measurements of the non-printed portion P C, setting the blast temperature of the air knife 73C and 73D, and the print part P of air volume settings by symbol 456
  • the temperature measurement value of B is changed with respect to the plot for each conveyance distance.
  • the print portion P is compared with that before the setting of the air temperature of the air knives 73C and 73D and the setting of the air flow rate are changed.
  • the duty setting of the IR heater 73A according to the thickness of the medium P, a constant film surface temperature is maintained and a constant film strength is ensured. Further, the blast temperature of the air knife 73C and 73D according to the thickness of the medium P set, and increase in the surface temperature is suppressed by changing the air volume setting, the printing portion P B and the non-printed portion P C The temperature difference is kept within a certain range.
  • FIG. 11A is an explanatory diagram showing the setting of the drying process condition with respect to the thickness of the medium.
  • FIG. 11A shows the setting of the duty of the IR heater 73A shown in FIG. 2, the setting of the air temperature of the air knives 73C and 73D, and the air knife when the medium P is divided into two stages of a thick medium and a thin medium.
  • the setting of the blast volume of 73C and 73D is illustrated.
  • the duty of the IR heater 73A shown in FIG. 2 when the medium P is a thin medium is set lower than the duty of the IR heater 73A when the medium P is a thick medium.
  • the medium P is a thin medium
  • the temperature rise of the medium P is suppressed and deformation of the medium P is prevented.
  • the medium P is thick, drying of the medium P is promoted.
  • the duty setting of the IR heater 73A when the medium P is a thin medium can be set to 40%
  • the duty setting of the IR heater 73A when the medium P is a thick medium can be set to 100%.
  • the setting of the blowing temperature which is the blowing temperature discharged from the air knives 73C and 73D shown in FIG. 2 when the medium P is a thin medium, corresponds to the surface temperature of the medium P.
  • Set to temperature range That is, when the medium P is a thin medium, the air temperature of the air knives 73C and 73D is set relatively low in correspondence with the duty setting of the IR heater 73A.
  • the temperature range corresponding to the surface temperature of the medium P is a temperature range including the surface temperature of the medium P, and is determined in consideration of the type and thickness of the medium P from the viewpoint of preventing deformation of the medium P. For example, a temperature range in which 90% of the surface temperature of the medium P is the lower limit and 100% of the surface temperature of the medium P is the upper limit can be given.
  • the temperature of the medium P is kept constant, and deformation of the medium P is suppressed.
  • the medium P is thick, drying of the medium P is promoted.
  • the surface temperature of the medium P during the drying process by the IR heater 73A or the surface temperature of the medium P after the drying process by the IR heater 73A is applied to the surface temperature of the medium P.
  • the surface temperature of the medium P may be applied the temperature of the surface 422 of the image 420 ate shown in FIG. 6 (B), applying the surface temperature of the non-printed portion P C that shown in FIG. 6 (B) May be. Moreover, you may apply both average temperature.
  • a temperature information acquisition unit may be provided, and the surface temperature of the medium P after the heat irradiation of the IR heater 73A may be measured to acquire the surface temperature information of the medium P as the temperature information of the medium P.
  • Information on the surface temperature of the medium P may be acquired as temperature information of the medium P by predicting the surface temperature of the medium P after the heat irradiation of the IR heater 73A from the duty setting.
  • the blown air volume of the air knives 73C and 73D when the medium P is a thin medium is the volume per unit time discharged from the air knives 73C and 73D when the medium P is a thick medium. It is set higher than the setting of the air flow rate.
  • the range of the thickness of the thick medium and the range of the thickness of the thin medium can be appropriately changed according to the type of the medium, the type of liquid attached to the medium, and the like.
  • the thin medium is 0.06 mm or more and 0.20 mm or less, and 0.21 mm or more and 0.39 mm or less.
  • An example in which a medium of millimeter or less is used as a thick medium is given.
  • a thickness less than the intermediate value can be a thin medium
  • a thickness greater than the intermediate value can be a thick medium.
  • the division of the thickness of the medium P is not limited to the above example, and can be appropriately determined in consideration of the type of the medium and other conditions of the drying process.
  • the thickness of the medium P it is possible to divide the thickness of the medium P into three or more stages, and increase the suction pressure for thinner media, switch between suction and discharge at a predetermined thickness, and increase the discharge pressure for thicker media. is there.
  • an intermediate value in the range of the thickness of the medium P can be applied.
  • FIG. 11B is an explanatory diagram showing the setting of the drying process condition for the thickness of the medium P when the thickness of the medium can be changed in multiple stages.
  • FIG. 11B shows an example in which the thickness of the medium P is divided into six stages. The number of media thickness categories can be changed as appropriate.
  • the thickness of the medium P shown in FIG. 11B has a relationship of A 1 ⁇ A 2 ⁇ A 3 ⁇ A 4 ⁇ A 5 ⁇ A 6 .
  • the numerical value of the duty setting of the IR heater 73A, the numerical value of the air temperature setting of the air knives 73C and 73D, and the numerical value of the air flow amount setting of the air knives 73C and 73D are set to 100 as the maximum setting. For example, 80 means 80% of the maximum setting.
  • the duty of the IR heater 73A is set relatively high as the thickness of the medium P increases.
  • the air temperature of the air knives 73C and 73D is set to a temperature corresponding to the surface temperature of the medium P, it is increased as the thickness of the medium P increases.
  • the setting of the air volume of the air knives 73C and 73D is lowered as the thickness of the medium P increases.
  • the relationship of the drying process condition with respect to the thickness of the medium P shown in FIG. 11B is based on the thickness of the medium P functioning as a heat irradiation drying process condition setting control table that defines the drying process condition of the heat irradiation drying process unit.
  • the duty setting control table of the IR heater 73A, the blowing temperature setting control table of the air knives 73C and 73D, and the blowing amount setting control table of the air knives 73C and 73D are integrally configured, and the drying process using the thickness of the medium P as a parameter. It is possible to configure a condition setting control table.
  • the drying processing condition setting unit 332 illustrated in FIG. 3 sets the drying processing conditions of the drying processing unit 73 illustrated in FIG. 1 with reference to the drying processing condition setting control table illustrated in FIG. Is possible.
  • a duty setting control table for the IR heater 73A, a blowing temperature setting control table for the air knives 73C and 73D, and a blowing amount setting control table for the air knives 73C and 73D are created for each type of medium and each type of liquid. Therefore, it is possible to cope with the setting of various media and liquid drying treatment conditions.
  • the setting of the blowing temperature and the setting of the blowing amount shown in FIG. 11A may be set to at least the upstream air knife 73C out of the upstream air knife 73C and the downstream air knife 73D.
  • the setting of the air temperature of the upstream air knife 73C and the setting of the air volume are applied to the setting of the air temperature of the downstream air knife 73D and the air volume.
  • the duty of the IR heater is set according to the thickness of the medium, and the blowing temperature and the blowing amount of the air knife are set according to the thickness of the medium.
  • the film surface temperature at which a certain film strength of the liquid adhered on the medium is realized is maintained, an increase in the temperature difference between the printed part and the non-printed part is prevented, and deformation of the medium is suppressed.
  • a drying processing program corresponding to the drying processing apparatus and the drying processing method described above can be configured. That is, it is possible to configure a drying processing program that causes a computer to execute functions of means corresponding to the respective units shown in FIGS. 1 to 3.
  • the computer is a medium conveying unit that functions as a medium conveying unit, a medium information acquiring unit that functions as a medium information acquiring unit, a thermal irradiation drying processing unit that functions as a thermal irradiation drying process, and a blow drying process that functions as a blow drying unit.
  • a drying process program that functions as a drying process condition setting unit that functions as a drying process condition setting unit, a thermal drying process control unit that functions as a thermal drying process control unit, and a blow drying process control unit that functions as a blow drying process control unit It is possible to configure.
  • the pressure condition applied to the medium P via the conveyance guide 72 is set from both the viewpoint of preventing scratches on the surface of the medium P on the conveyance guide 72 side and the viewpoint of preventing deformation of the medium P.
  • FIG. 12 is a flowchart showing the flow of control of the drying method according to the second embodiment.
  • the blowing temperature setting step S22 and the blowing amount setting step S24 in the flowchart shown in FIG. 4 are illustrated as the blowing condition setting step S21.
  • the blowing condition setting step S ⁇ b> 21 functioning as a drying processing condition setting step
  • the pressure applying condition of FIG. Proceed to setting step S27.
  • the pressure condition applied to the medium P from the transport guide 72 shown in FIG. 1 is set for a thin medium.
  • the process proceeds to the drying process step S40 in FIG.
  • blowing condition setting step S31 the blowing condition setting step S31.
  • the blowing condition setting step S31 functioning as the drying process condition setting step
  • the process proceeds to the pressure application condition setting step S37.
  • the pressure condition applied from the transport guide 72 to the medium P is set for a thick medium.
  • the process proceeds to the drying process step S40.
  • the processes after the drying process S40 are the same as those in the first embodiment, and a description thereof will be omitted.
  • FIG. 13 (A) is an explanatory view showing the setting of the pressure condition with respect to the thickness of the medium in the drying method according to the second embodiment.
  • the processing conditions of the drying processing unit 73 shown in FIG. 13A are the same as those in FIG.
  • the pressure condition when the medium P set in the pressure application condition setting step S27 in FIG. 12 is thin is the pressure for sucking the medium P through the transport guide 72 shown in FIG.
  • the deformation of the medium P is prevented by fixing the medium P.
  • the pressure condition when the medium P is thick set in the pressure application condition setting step S37 in FIG. 12 is a pressure condition for discharging the air from the transport guide 72 and separating the medium P from the transport guide 72. Damage due to contact with the P conveyance guide 72 is prevented.
  • FIG. 13B is an explanatory diagram showing the setting of the pressure condition with respect to the thickness of the medium in consideration of the case where liquid is attached to both sides of the medium. As a case where the liquid is attached to both sides of the medium P, double-sided printing for forming images on both sides of the medium P is raised.
  • the setting of the drying processing unit 73 in FIG. 13B is the same as that in FIG.
  • FIG. 13 (B) when a liquid is attached to one side, it is the same as FIG. 13 (A), and the description is omitted.
  • the pressure condition for discharging the air from the conveyance guide 72 and separating the medium P from the conveyance guide 72 when the medium P is a thin medium and when the medium P is thick. Is set.
  • image is a concept including what is classified into text such as characters and symbols, and what is classified into mask patterns and wiring patterns.
  • FIG. 13C is an explanatory diagram of a pressure condition control table that defines the relationship between the thickness of the medium P and the pressure condition.
  • the thickness of the medium P in FIG. 13C has a relationship of A 1 ⁇ A 2 ⁇ A 3 ⁇ A 4 ⁇ A 5 ⁇ A 6 .
  • a positive value represents discharge, and a negative value represents suction.
  • the pressure value in FIG. 13C is a relative numerical value when the maximum value is 100. For example, 60 means 60 percent of the maximum value.
  • the pressure condition control table shown in FIG. 13C is stored in the table storage unit 336 in FIG. 1 and is referred to during the drying process.
  • the pressure condition control table may be created for each type of medium and each type of liquid.
  • the pressure condition suitable for the pressure applied to the medium during the drying process is set according to the thickness of the medium. Further, it is possible to prevent deformation of the medium due to application of pressure to the medium and damage to the medium.
  • the setting of the blowing temperature of the downstream air knife 73D shown in FIG. 2 is set separately from the setting of the blowing temperature of the upstream air knife 73C shown in FIG. 2 according to the thickness of the medium P. Is done. Further, the setting of the air flow rate of the downstream air knife 73D is set separately from the setting of the air flow rate of the upstream air knife 73C.
  • the air blowing temperature is the temperature of the air discharged from the upstream air knife 73C and the downstream air knife 73D.
  • the blast volume is the volume of blast per unit time released from the upstream air knife 73C and the downstream air knife 73D.
  • the air temperature of the upstream air knife 73C and the air volume of the upstream air knife 73C are set. Applies.
  • the setting of the blowing temperature of the air knives 73C and 73D and the setting of the blowing amount of the air knives 73C and 73D shown in the first embodiment are at least the setting of the blowing temperature of the upstream air knife 73C and the blowing amount of the upstream air knife 73C. Applied to the settings.
  • FIG. 14 is a block diagram of a control system of the drying processing apparatus according to the third embodiment. In the figure, the same or similar parts as in FIG.
  • the air knife control unit 321A is individually controlled based on the setting of the blowing air temperature and the setting of the blowing amount for the upstream air knife 73C and the downstream air knife 73D. The same duty is set for all IR heaters 73A.
  • FIG. 15 is a flowchart showing a control flow of the drying method according to the third embodiment. 15, parts that are the same as or similar to those in FIG. 4 are given the same reference numerals, and descriptions thereof are omitted as appropriate.
  • the process proceeds to the downstream drying process condition setting process S25 functioning as the drying process condition setting process.
  • the downstream drying process condition setting process S25 the downstream air knife 73D is set.
  • the drying process conditions are set for a thin medium, and the process proceeds to the drying process S40.
  • the upstream air knife 73C is dried in the upstream drying processing condition setting step S33 functioning as a drying processing condition setting step.
  • the processing condition is set for a thick medium.
  • the process proceeds to the downstream drying process condition setting process S35 functioning as the drying process condition setting process.
  • the downstream drying process condition setting process S35 the downstream side
  • the setting of the drying process condition of the air knife 73D is set for a thick medium, and the process proceeds to the drying process step S40.
  • the processes after the drying process S40 are the same as those in the first embodiment and the second embodiment, and a description thereof will be omitted.
  • FIG. 16 is an explanatory diagram showing the setting of the drying process condition with respect to the thickness of the medium P in the third embodiment.
  • the duty of the IR heater, the upstream air temperature, and the upstream air flow in FIG. 16 are the same as the duty, air temperature, and air flow of the IR heater in FIGS. 11A and 13A, and a description thereof is omitted.
  • the setting of the blowing temperature of the downstream air knife 73D is set lower than the setting of the blowing temperature of the upstream air knife 73C.
  • the medium P is cooled by the air blown from the downstream air knife 73D.
  • the setting of the air temperature of the upstream air knife 73C and the downstream air knife 73D is the same, and the deformation of the medium P is suppressed by keeping the temperature of the medium P constant.
  • the setting of the blowing amount of the downstream air knife 73D is set lower than the setting of the blowing amount of the upstream air knife 73C, thereby preventing the fluttering of the medium P.
  • the setting of the air flow rate of the downstream air knife 73D can be set by multiplying the setting of the air flow rate of the upstream air knife 73C by a number less than one.
  • the setting of the blowing temperature of the downstream air knife 73D is the setting of the blowing temperature of the upstream air knife 73C.
  • the medium P is cooled by the air blown from the downstream air knife 73D.
  • flapping of the medium P is prevented by setting the air flow rate of the downstream air knife 73D lower than the air flow rate setting of the upstream air knife 73C.
  • the drying processing apparatus and the drying processing method according to the fourth embodiment are configured such that the operator can change the setting of the drying processing conditions set according to the thickness of the medium.
  • FIG. 17 is a flowchart showing the flow of control of the drying method according to a modification of the embodiment of the present invention. 17, parts that are the same as or similar to those in FIG. 4 are given the same reference numerals, and descriptions thereof will be omitted as appropriate.
  • the setting change determination step S38 it is determined whether or not there is a change in the setting of the drying processing conditions that have been set.
  • the setting of the drying process condition that is YES in the setting change determination step S38 is changed, the process proceeds to the setting change step S39.
  • the setting change step S39 the setting of the drying process conditions is changed from the viewpoint of suppressing deformation, preventing scratches, and improving the film strength.
  • the process proceeds to the drying process step S40.
  • the change of the setting of the drying processing condition of the drying processing unit 73 is performed by the operator using the drying processing condition setting unit 332 while watching the setting change screen displayed on the display unit 334 shown in FIG.
  • the process proceeds to the drying processing step S40.
  • the processes after the drying process S40 are the same as those in the first to third embodiments, and a description thereof will be omitted.
  • FIG. 18 is an explanatory diagram for changing the setting of the drying process conditions according to the fourth embodiment.
  • the setting change of the drying process condition is performed from the viewpoint of the thickness of the medium, deformation suppression, scratch prevention, and improvement of film strength.
  • the thickness of the medium is the same as the setting of the drying process condition for the thickness of the medium shown in FIG.
  • the duty setting of the IR heater 73A corresponding to the duty setting of the IR heater shown in FIG. 18 is relatively lowered.
  • the duty setting of the IR heater 73A when the setting is changed from the viewpoint of suppressing deformation can be the same setting as the duty setting of the IR heater 73A when the medium P is a thin medium.
  • the setting of the air temperature of the upstream air knife 73C corresponding to the upstream air temperature shown in FIG. 18 is relatively low.
  • the setting of the blowing temperature of the upstream air knife 73C is changed to a setting lower than the surface temperature after heat irradiation by the IR heater 73A.
  • the setting of the air flow rate of the upstream air knife 73C when the setting is changed from the viewpoint of suppressing deformation can be the same setting as the air flow rate of the upstream air knife 73C when the medium P is thin.
  • the setting of the blowing temperature of the downstream air knife 73D when the setting is changed from the viewpoint of suppressing deformation uses the same setting as the setting of the blowing temperature of the upstream air knife 73C when the setting is changed from the viewpoint of suppressing deformation. Can do.
  • the setting of the blowing amount of the downstream air knife 73D when the setting is changed from the viewpoint of suppressing deformation uses the same setting as the setting of the blowing amount of the upstream air knife 73C when the setting is changed from the viewpoint of suppressing deformation. Can do.
  • the pressure applied to the medium P from the transport guide 72 corresponding to the pressure shown in FIG. 18 is set to suction.
  • the duty setting of the IR heater 73A corresponding to the duty setting of the IR heater shown in FIG. 18 is relatively increased.
  • the duty setting of the IR heater 73A when the setting is changed from the viewpoint of scratch prevention can be the same setting as the duty setting of the IR heater 73A when the medium P is a thick medium.
  • the setting of the upstream air knife 73C corresponding to the upstream blowing temperature and the upstream blowing amount shown in FIG. 18 is turned off.
  • the settings of the downstream air knife 73D corresponding to the downstream air blowing temperature and the downstream air blowing amount shown in FIG. 18 are turned off.
  • the pressure applied to the medium P from the transport guide 72 corresponding to the pressure shown in FIG. 18 is set to discharge.
  • the duty setting of the IR heater 73A corresponding to the duty setting of the IR heater shown in FIG. 18 is relatively increased.
  • the duty setting of the IR heater 73A when the setting is changed from the viewpoint of improving the film strength can be the same setting as the duty setting of the IR heater 73A when the medium P is a thick medium.
  • the setting of the blowing temperature of the upstream air knife 73C is changed to a temperature higher than the surface temperature after heat irradiation by the IR heater.
  • the setting of the air flow rate of the upstream air knife 73C when the setting is changed from the viewpoint of improving the film strength can be the same as the setting of the air flow rate of the upstream air knife 73C when the medium P is a thin medium. .
  • the setting of the blowing temperature of the downstream air knife 73D when the setting is changed from the viewpoint of improving the film strength is the same as the setting of the blowing temperature of the upstream air knife 73C when the setting is changed from the viewpoint of improving the film strength.
  • Settings can be used.
  • the setting of the blowing amount of the downstream air knife 73D when the setting is changed from the viewpoint of improving the film strength is the same as the setting of the blowing amount of the upstream air knife 73C when the setting is changed from the viewpoint of improving the film strength. Settings can be used.
  • the pressure applied to the medium P from the transport guide 72 corresponding to the pressure shown in FIG. 18 is set to suction.
  • the aspect of changing the drying process condition setting shown in FIG. 18 may be defined as the drying process mode, and the drying process condition may be changed according to the switching of the drying process mode.
  • a drying process mode switching unit that switches between the sheet deformation suppression priority mode, the flaw prevention priority mode, and the film strength priority mode can be provided, and the setting of the drying process condition can be changed according to the switching of the drying process mode.
  • a drying process mode switching screen is displayed on the display unit 334 shown in FIG. 3, and a drying process mode using a switch, a keyboard, a mouse, or the like, which is one form of the drying process condition setting unit 332.
  • the mode which switches is mentioned.
  • drying processing modes listed above are examples.
  • the drying processing mode is not limited to the above example, and can be changed, added, and deleted.
  • the setting of the drying process condition can be changed by the operator, and the drying process based on the drying process condition corresponding to the special request such as medium deformation suppression priority is realized. Can do.
  • FIG. 19 is an explanatory diagram of a drying process condition control table showing a configuration example of the drying process condition setting control table.
  • the drying processing condition setting control table shown in FIG. 19 is a table in which the drying processing condition settings described so far are integrated.
  • the thickness of the medium is a parameter.
  • the thickness of the medium is divided into two stages: a thin medium and a thick medium. Further, each medium thickness category has parameters of standard, deformation suppression, scratch prevention, and film strength.
  • the setting values stored in the drying processing condition setting control table shown in FIG. 19 are expressed as a ratio when the maximum setting value is 100.
  • a negative sign in the pressure applied to the medium P from the transport guide 72 represents suction.
  • the drying processing condition setting control table shown in FIG. 19 is stored in the table storage unit 336 in FIG.
  • the drying process condition control table shown in FIG. 19 is an example, and parameters and set values are appropriately added, deleted, changed, etc. according to the specifications of the drying processing apparatuses 20 and 20A and the requirements for the drying process. .
  • first to fourth embodiments can be appropriately combined.
  • a drying processing program that causes a computer to execute the functions of the units corresponding to the respective units shown in the first to fourth embodiments.
  • FIG. 20 is an overall configuration diagram of the inkjet recording apparatus 10. 20, parts that are the same as or similar to those in FIGS. 1 and 2 are given the same reference numerals, and descriptions thereof will be omitted as appropriate.
  • the ink jet recording apparatus 10 shown in the figure is an ink jet type image forming apparatus that forms an image by an ink jet method using ink on a sheet medium P.
  • the ink jet recording apparatus 10 mainly includes a paper feeding unit 12 that feeds the medium P, a processing liquid applying unit 14 that applies a processing liquid to the medium P fed from the paper feeding unit 12, and a processing liquid applying unit 14.
  • a processing liquid drying processing unit 16 that performs a drying process on the medium P to which the processing liquid is applied, and an image is recorded by an inkjet method using ink for image recording of the medium P that has been subjected to the drying process by the processing liquid drying processing unit 16.
  • a drawing unit 18 that performs the drying process on the medium P on which an image has been recorded by the drawing unit 18, and a paper discharge unit 24 that discharges the medium P that has been subjected to the drying process by the drying processing unit 20.
  • the drying treatment apparatuses 20 and 20A described with reference to FIGS. 1 to 19 can be applied to the treatment liquid drying treatment unit 16 shown in FIG.
  • the paper feed unit 12 mainly includes a paper feed base 30, a soccer device 32, a paper feed roller pair 34, a feeder board 36, a front pad 38, and a paper feed drum 40.
  • the media P loaded on the table 30 are fed to the processing liquid application unit 14 one by one.
  • the medium P loaded on the paper feed table 30 is pulled up one by one from the top by the soccer device 32 and fed to the paper feed roller pair 34.
  • the medium P fed to the paper feed roller pair 34 is placed on the feeder board 36 and conveyed by the feeder board 36.
  • the medium P is pressed against the conveying surface of the feeder board 36 by the retainer 36A and the guide roller 36B, and the unevenness is corrected.
  • the inclination of the medium P is corrected by the front end of the medium P being in contact with the front pad 38.
  • the medium P conveyed by the feeder board 36 is delivered to the paper feed cylinder 40.
  • the medium P delivered to the paper feed cylinder 40 is transported to the treatment liquid application unit 14 with its leading end gripped by the gripper 40A of the paper feed cylinder 40. Detailed illustration of the gripper 40A is omitted.
  • the gripper 40A includes a claw base in which a plurality of claws are arranged along the axial direction of the paper feed cylinder 40, and is arranged at a position facing the plurality of claws, and further supports the plurality of claws so as to be slidable.
  • a gripper shaft is included.
  • the gripper 40A is opened and closed by swinging the claws by rotating the gripper shaft.
  • the arrangement of the plurality of claws is determined in accordance with the size of the medium P.
  • the treatment liquid application unit 14 mainly includes a treatment liquid cylinder 42 that conveys the medium P, and a treatment liquid application device 44 that applies a predetermined treatment liquid to the image recording surface of the medium P conveyed by the treatment liquid cylinder 42.
  • the processing liquid is applied to the image recording surface of the medium P.
  • the treatment liquid applied to the medium P has a function of aggregating the color material in the ink to be ejected onto the medium P by the subsequent drawing unit 18 or a function of insolubilizing the color material of the ink.
  • the medium P delivered from the paper feed cylinder 40 of the paper feed unit 12 is delivered to the processing liquid cylinder 42.
  • the processing liquid cylinder 42 grips the front end of the medium P with the gripper 42A, and sucks and holds the sheet on the outer peripheral surface.
  • the gripper 42A can apply the same configuration as that of the gripper 40A provided in the paper feed cylinder 40, and thus the description thereof is omitted.
  • the gripper 42A grips the leading end of the medium P, holds the medium P on the outer peripheral surface of the processing liquid cylinder 42, and rotates the processing liquid cylinder 42, whereby the medium P is wound around the outer peripheral surface of the processing liquid cylinder 42. Are transported.
  • the processing liquid is applied to the medium P conveyed to the processing liquid cylinder 42 from the processing liquid applying device 44.
  • application using an application roller As an example of the application form, application using an application roller, application using a blade, or the like can be given. Examples of other forms of application include ejection by an ink jet method or spraying by a spray method.
  • the treatment liquid drying processing unit 16 mainly includes a treatment liquid drying processing cylinder 46 that conveys the medium P, a sheet conveyance guide 48 that supports the medium P conveyed by the treatment liquid drying treatment cylinder 46, and a treatment liquid drying treatment cylinder 46. And a processing liquid drying processing unit 50 that blows hot air on the medium P conveyed by the apparatus and dries the medium P to which the processing liquid is applied.
  • the medium P transferred from the treatment liquid cylinder 42 of the treatment liquid application unit 14 to the treatment liquid drying treatment cylinder 46 is gripped by a gripper 46 ⁇ / b> A provided in the treatment liquid drying treatment cylinder 46.
  • the gripper 46 ⁇ / b> A can apply the same configuration as the gripper 40 ⁇ / b> A provided in the paper feed cylinder 40, and thus the description thereof is omitted.
  • the medium P is supported by the paper transport guide 48 on the surface opposite to the surface coated with the processing liquid with the surface coated with the processing liquid facing inward.
  • the medium P is wound around the outer peripheral surface of the treatment liquid drying treatment cylinder 46 and conveyed.
  • the medium P conveyed by the treatment liquid drying treatment cylinder 46 is subjected to a drying process by blowing hot air from the treatment liquid drying treatment unit 50 installed inside the treatment liquid drying treatment cylinder 46.
  • the medium P is dried, the solvent component in the processing liquid applied to the medium P is removed, and a processing liquid layer is formed on the surface of the medium P to which the processing liquid is applied.
  • the drawing unit 18 mainly presses the drawing cylinder 52 that functions as an impression cylinder that rotates and conveys the medium P, and the medium P that is conveyed by the drawing cylinder 52, so that the medium P adheres to the outer peripheral surface of the drawing cylinder 52.
  • a pressing roller 54 inkjet heads 56C, 56M, 56Y and 56K that discharge ink droplets of C, M, Y, and K colors onto the medium P; and an inline sensor 58 that reads an image drawn on the medium P.
  • a color image is drawn on the medium P by ejecting ink droplets of each color of C, M, Y, and K toward the medium P including the processing liquid layer.
  • the ink jet heads 56C, 56M, 56Y and 56K applied to the present embodiment are piezoelectric systems that eject ink by utilizing the flexural deformation of piezoelectric elements, and ink is ejected by generating a film boiling phenomenon by heating the ink.
  • Various methods such as a thermal method to be applied can be applied.
  • the full-line type head shown by the reference numeral 56 in FIG. 22 is applied.
  • the tip of the medium P transferred from the processing liquid drying processing cylinder 46 of the processing liquid drying processing unit 16 to the drawing cylinder 52 is gripped by a gripper 52A provided in the drawing cylinder 52.
  • the gripper 52 ⁇ / b> A can apply the same configuration as the gripper 42 ⁇ / b> A provided in the processing liquid cylinder 42, and thus the description thereof is omitted.
  • the medium P adheres to the outer peripheral surface of the drawing cylinder 52 by passing under the sheet pressing roller 54.
  • the medium P sucked and held on the outer peripheral surface of the drawing cylinder 52 passes from the ink jet heads 56C, 56M, 56Y and 56K when passing through the ink discharge area immediately below the ink jet heads 56C, 56M, 56Y and 56K.
  • C, M, Y, and K ink droplets are ejected to record a color image.
  • the ink adhering to the medium P reacts with the treatment liquid layer formed on the medium P, and is fixed to the medium P without causing feathering or bleeding. In this way, a high-quality image is drawn on the medium P.
  • the image read by the inline sensor 58 includes a test image.
  • the in-line sensor 58 includes an imaging device such as a CCD image sensor, and an imaging device that generates electrical image data of an image to be read is applied.
  • CCD is an abbreviation for Charge-Coupled Device.
  • Image reading by the in-line sensor 58 is performed as necessary, and recording element abnormality detection of the inkjet heads 56C, 56M, 56Y, and 56K is performed based on the image reading data.
  • the medium P that has passed through the reading area of the in-line sensor 58 is released from the drawing cylinder 52 and transferred to the drying apparatus 20.
  • the drying processing apparatus 20 includes a drying processing unit 73 that performs a drying process on the medium P conveyed by the medium conveying unit 64, performs a drying process on the medium P after drawing, and remains on the medium P. Remove liquid components.
  • the description of the drying processing apparatus 20 is omitted.
  • the medium supply unit 69 shown in FIG. 20 the medium supply unit 69 shown in FIG.
  • the paper discharge unit 24 that collects the medium P on which a series of image recording has been performed includes a paper discharge tray 76 that stacks and collects the medium P.
  • the paper discharge unit 24 shown in FIG. 20 adopts the paper discharge configuration of the drying processing apparatus 20 shown in FIG. Detailed description is omitted here.
  • FIG. 21 is a block diagram showing a schematic configuration of a control system of the inkjet recording apparatus 10 shown in FIG.
  • the inkjet recording apparatus 10 includes a system controller 100, a communication unit 102, an image memory 104, a conveyance control unit 110, a paper feed control unit 112, a processing liquid application control unit 114, a processing liquid drying control unit 116, A drawing control unit 118, an operation unit 130, a display unit 132, and the like are provided.
  • the system controller 100 functions as an overall control unit that performs overall control of each unit of the ink jet recording apparatus 10, and also functions as a calculation unit that performs various calculation processes.
  • the system controller 100 includes a CPU 100A, a ROM 100B, and a RAM 100C.
  • CPU is an abbreviation for Central Processing Unit
  • ROM is an abbreviation for Read Only Memory
  • RAM is an abbreviation for Random Access Memory.
  • the system controller 100 also functions as a memory controller that controls writing of data to the memories such as the ROM 100B, the RAM 100C, and the image memory 104 and reading of data from these memories.
  • FIG 21 illustrates an example in which the memory such as the ROM 100B and the RAM 100C is built in the system controller 100, but the memory such as the ROM 100B and the RAM 100C may be provided outside the system controller 100.
  • the system controller 100 shown in FIG. 21 may have the function of the system controller 300 shown in FIG. That is, the system controller 100 illustrated in FIG. 21 may control the respective units of the drying processing apparatus 20 illustrated in FIG. 21 in an integrated manner instead of the system controller 300 illustrated in FIG.
  • ROM 100B and RAM 100C shown in FIG. 21 may also be used as the ROM 300B and RAM 300C shown in FIG.
  • the communication unit 102 includes a communication interface, and transmits and receives data to and from the host computer 103 connected to the communication interface.
  • the image memory 104 functions as a temporary storage unit for various data including image data, and data is read and written through the system controller 100. Image data captured from the host computer 103 via the communication unit 102 is temporarily stored in the image memory 104.
  • the transport control unit 110 controls the operation of the transport system 11 for the medium P in the ink jet recording apparatus 10.
  • the transport system 11 includes the processing liquid cylinder 42, the processing liquid drying processing cylinder 46, and the drawing cylinder 52 illustrated in FIG.
  • the transport control unit 310 shown in FIG. 21 may have the function of the transport control unit 310 shown in FIG. 21 is a transport control unit provided in the drying processing apparatus 20 shown in FIG. 21, and the transport control unit 110 in FIG. 21 replaces the transport control unit 310 shown in FIG. 3 by the medium transport unit 64 shown in FIG. It is also possible to control the operation.
  • the treatment liquid application control unit 114 operates the treatment liquid application unit 14 in accordance with a command from the system controller 100 to control the application amount and application timing of the treatment liquid.
  • the processing liquid drying control unit 116 operates the processing liquid drying processing unit 16 in accordance with a command from the system controller 100 to control the drying temperature, the flow rate of the dry gas, and the injection timing of the dry gas.
  • the drawing control unit 118 controls the operation of the recording head provided in the drawing unit 18 in accordance with a command from the system controller 100.
  • the illustration of each part constituting the drawing control unit 118 shown below is omitted.
  • the illustration of the inkjet heads 56C, 56M, 56Y, and 56K is omitted.
  • the drawing control unit 118 includes: an image processing unit that forms dot data from input image data; a waveform generation unit that generates a drive voltage waveform; a waveform storage unit that stores a drive voltage waveform; and a recording head. And a drive circuit that supplies a drive voltage having a drive waveform corresponding to the dot data.
  • color separation processing for separating input image data into RGB colors
  • color conversion processing for converting RGB into CMYK
  • correction processing such as gamma correction and unevenness correction
  • gradation values for each color pixel.
  • a halftone process for converting to a gradation value less than the original gradation value is performed.
  • raster data represented by a digital value from 0 to 255 can be cited.
  • the dot data obtained as a result of the halftone process may be a binary image or a multi-value image of three or more values.
  • the ejection timing and ink ejection amount at each pixel position are determined, the ejection timing at each pixel position, the drive voltage corresponding to the ink ejection amount, and the ejection of each pixel.
  • a control signal for determining the timing is generated, this driving voltage is supplied to the recording head, and dots are formed at the recording position by the ink droplets ejected from the recording head.
  • the in-line sensor 58 reads an image drawn on the medium P and sends it to the abnormal recording element detection unit via the system controller 100.
  • the abnormal recording element detection unit analyzes the presence or absence of the abnormal recording element of the recording head based on the read signal of the inline sensor 58.
  • the 21 includes an operation member such as an operation button, a keyboard, or a touch panel, and sends operation information input from the operation member to the system controller 100.
  • the system controller 100 executes various processes in accordance with the operation information sent from the operation unit 130.
  • the display unit 132 includes a display device such as a liquid crystal panel, and displays various setting information of the device or information such as abnormality information on the display device in response to a command from the system controller 100.
  • the display unit 334 illustrated in FIG. 3 can also be used as the display unit 132 illustrated in FIG.
  • the parameter storage unit 134 stores various parameters used in the inkjet recording apparatus 10. Various parameters stored in the parameter storage unit 134 are read out via the system controller 100 and set in each unit of the apparatus.
  • the program storage unit 136 stores a program used for each unit of the inkjet recording apparatus 10. Various programs stored in the program storage unit 136 are read out via the system controller 100 and executed in each unit of the apparatus.
  • FIG. 22 is a configuration diagram of the inkjet heads 56C, 56M, 56Y, and 56K shown in FIG. 20, and is a perspective plan view of an ejection surface for ejecting ink droplets.
  • the symbol X in FIG. 22 represents the width direction of the medium P.
  • a symbol Y in FIG. 22 represents the medium transport direction of the medium P.
  • the same structure is applied to the inkjet heads 56C, 56M, 56Y and 56K corresponding to each color of CMYK.
  • the alphabets of the inkjet heads 56C, 56M, 56Y and 56K may be omitted and described as the inkjet head 56.
  • the inkjet head 56 shown in FIG. 22 has a structure in which a plurality of head modules 200 are connected in the width direction of the medium P perpendicular to the medium conveyance direction.
  • the plurality of head modules 200 constituting the inkjet head 56 can apply the same structure. Further, the head module 200 can function as a recording head by itself.
  • the inkjet head 56 illustrated in FIG. 22 has a structure in which a plurality of head modules 200 are arranged in a line along the width direction of the medium P, and has a length corresponding to the total length L max of the medium P in the width direction of the medium P.
  • This is a full-line type recording head in which a plurality of nozzle portions are arranged.
  • the illustration of the nozzle portion is omitted.
  • the nozzle portion is illustrated with reference numeral 281 in FIG.
  • a plurality of nozzle openings are arranged on the ejection surface 277 of the head module 200 constituting the inkjet head 56.
  • the illustration of the nozzle openings is omitted.
  • the nozzle opening is shown in FIG. Details of the arrangement of the plurality of nozzles and the arrangement of the plurality of nozzle openings will be described later.
  • the inkjet head 56 having a structure in which a plurality of head modules 200 are arranged in a line along the width direction of the medium P is illustrated, but the plurality of head modules 200 are staggered in the width direction of the medium P.
  • the plurality of head modules 200 may be integrated.
  • FIG. 23 is a perspective view of the head module 200 and includes a partial cross-sectional view.
  • 24 is a perspective plan view of the ejection surface 277 of the head module 200 shown in FIG.
  • the head module 200 has an ink supply unit including an ink supply chamber 232, an ink circulation chamber 236, and the like on the upper side in FIG. 23, which is the opposite side of the ejection surface 277 of the nozzle plate 275. .
  • the ink supply chamber 232 is connected to an ink tank (not shown) via a supply line 252, and the ink circulation chamber 236 is connected to a collection tank (not shown) via a circulation line 256.
  • the number of nozzle openings 280 is omitted, but a plurality of nozzle openings 280 are arranged on the discharge surface 277 of the nozzle plate 275 of one head module 200 in a two-dimensional arrangement.
  • the head module 200 extends along the long-side end surface along the V direction having an angle ⁇ with respect to the width direction of the medium P and the W direction with an angle ⁇ with respect to the medium transport direction. It has a parallelogram planar shape having an end surface on the short side, and a plurality of nozzle openings 280 are arranged in a matrix in the row direction along the V direction and the column direction along the W direction.
  • the arrangement of the nozzle openings 280 is not limited to the mode illustrated in FIG. 24, and a plurality of nozzle openings 280 are arranged along the row direction along the width direction of the medium P and the column direction obliquely intersecting the width direction of the medium P.
  • a nozzle opening 280 may be arranged.
  • the matrix arrangement of the nozzle openings 280 means that the plurality of nozzle openings 280 are projected in the width direction of the medium P, and the plurality of nozzle openings 280 are arranged along the width direction of the medium P.
  • the nozzle openings 280 are arranged so that the distance between the nozzle openings 280 is uniform.
  • the nozzle openings 280 belonging to one head module 200 and the nozzle openings 280 belonging to the other head module 200 are mixed in a connecting portion between adjacent head modules 200.
  • the nozzle opening 280 belonging to one head module 200 and the nozzle opening 280 belonging to the other head module 200 in the connection area are arranged at the same position. Also, the arrangement of the nozzle openings 280 is uniform.
  • FIG. 25 is a cross-sectional view showing the internal structure of the head module 200.
  • Reference numeral 214 is an ink supply path
  • reference numeral 218 is a pressure chamber
  • reference numeral 216 is an individual supply path connecting each pressure chamber 218 and the ink supply path 214
  • reference numeral 220 is a nozzle communication path connecting the pressure chamber 218 to the nozzle opening 280, reference numeral 226. Is a circulation individual flow path connecting the nozzle communication path 220 and the circulation common flow path 228.
  • the pressure chamber 218 may be referred to as a liquid chamber.
  • the vibration plate 266 is provided on the flow channel structure 210 constituting the flow channel portions 214, 216, 218, 220, 226, and 228.
  • a piezoelectric element 230 having a laminated structure of a lower electrode 265, a piezoelectric layer 231, and an upper electrode 264 is disposed on the vibration plate 266 via an adhesive layer 267.
  • the lower electrode 265 may be referred to as a common electrode, and the upper electrode 264 may be referred to as an individual electrode.
  • the upper electrode 264 is an individual electrode patterned according to the shape of each pressure chamber 218, and a piezoelectric element 230 is provided for each pressure chamber 218.
  • the ink supply path 214 is connected to the ink supply chamber 232 described with reference to FIG. 23, and ink is supplied from the ink supply path 214 to the pressure chamber 218 via the individual supply path 216.
  • a driving voltage to the upper electrode 264 of the piezoelectric element 230 provided in the corresponding pressure chamber 218 according to the image data of the image to be recorded, the piezoelectric element 230 and the diaphragm 266 are deformed and the pressure chamber.
  • the volume of 218 changes, and ink is ejected from the nozzle opening 280 through the nozzle communication path 220 due to a pressure change accompanying this.
  • Ink droplets can be ejected from the nozzle openings 280 by controlling the driving of the piezoelectric elements 230 corresponding to the nozzle openings 280 according to the dot arrangement data generated from the image data.
  • a desired image can be formed on the medium P by controlling the ink ejection timing from each nozzle opening 280 in accordance with the transport speed while transporting the medium P in the medium transport direction at a constant speed. .
  • each nozzle opening 280 has a substantially square planar shape, and the outlet to the nozzle opening 280 is provided at one of the diagonal corners. And an individual supply path 216 serving as an inlet for supply ink.
  • the shape of the pressure chamber is not limited to a square.
  • the planar shape of the pressure chamber may have various forms such as a square such as a rhombus and a rectangle, a pentagon, a hexagon and other polygons, a circle and an ellipse.
  • a circulation outlet (not shown) is formed in the nozzle part 281 including the nozzle opening 280 and the nozzle communication path 220, and the nozzle part 281 communicates with the circulation individual flow path 226 via the circulation outlet.
  • ink that is not used for ejection is collected into the circulation common channel 228 via the circulation individual channel 226.
  • the circulation common flow path 228 is connected to the ink circulation chamber 236 described with reference to FIG. 23, and the ink is always collected to the circulation common flow path 228 through the circulation individual flow path 226, so that the nozzle portion at the time of non-ejection Ink thickening is prevented.
  • the ink jet head 56 is not limited to the structure shown in FIGS.
  • the nozzle openings 280 and the nozzle portions 281 may be arranged in a single row in the width direction of the medium P, which is the width direction of the medium P, or in a two-row staggered arrangement.
  • FIG. 25 illustrates a piezoelectric element 230 having a structure separated individually corresponding to each nozzle portion 281 as an example of the piezoelectric element.
  • a structure in which the piezoelectric layer 231 is integrally formed with respect to the plurality of nozzle portions 281, individual electrodes are formed corresponding to the respective nozzle portions 281, and an active region is formed for each nozzle portion 281 is applied. Also good.
  • a heater is provided in the pressure chamber 218 as a pressure generating element instead of the piezoelectric element, and a driving voltage is supplied to the heater to generate heat, and ink in the pressure chamber 218 is ejected from the nozzle opening 280 using a film boiling phenomenon.
  • a thermal method may be applied.
  • the configuration of the inkjet recording apparatus 10 described with reference to FIGS. 20 to 25 can be changed, added, deleted, and the like. For example, it is possible to omit the configuration relating to the application of the processing liquid and the drying of the processing liquid, and to change the configuration of the conveyance system of the recording medium.
  • drying processing apparatus the drying processing method, the drying processing program, and the image forming apparatus described above can be appropriately changed, added, or deleted without departing from the spirit of the present invention. Moreover, it is also possible to combine each embodiment mentioned above suitably.
  • DESCRIPTION OF SYMBOLS 10 ... Inkjet recording apparatus, 20 ... Drying processing apparatus, 64 ... Medium conveyance part, 72 ... Conveyance guide, 73 ... Drying processing part, 73A, 73B ... IR heater, 73C ... Upstream air knife, 73D ... Downstream air knife, 100, DESCRIPTION OF SYMBOLS 300 ... System controller, 110, 310 ... Conveyance control part, 320 ... IR heater control part, 321 ... Air knife control part, 324 ... Pressure control part, 330 ... Medium information acquisition part, 332 ... Drying process condition setting part, 336 ... Table Memory

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Abstract

La présente invention concerne : un appareil de séchage; un procédé de séchage; et un programme et un appareil de formation d'images pour le séchage, permettant de prévenir la déformation d'un support, l'allongement de la durée de séchage est supprimé, et un bon état séché du support est obtenu. Lorsqu'un séchage par rayonnement de chaleur et un séchage par soufflage d'air sont effectués sur un support (P) à sécher, les conditions de séchage sont définies comme suit : le rayonnement de chaleur par une pièce de séchage par rayonnement de chaleur (73A) est relativement réduit pour un support mince et relativement augmenté pour un support épais; la température de soufflage au niveau d'au moins une partie de séchage par soufflage en amont (73C) est définie pour être dans une plage de température correspondant à la température de surface du support pendant ou après le séchage par la pièce de séchage par rayonnement de chaleur; et le volume de soufflage au niveau de la pièce de séchage par soufflage en amont est augmenté pour un support mince et diminué pour un support épais.
PCT/JP2015/063492 2014-09-29 2015-05-11 Appareil de séchage, procédé de séchage, ainsi que programme et appareil de formation d'images pour le séchage Ceased WO2016051844A1 (fr)

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JP2016168805A (ja) * 2015-03-16 2016-09-23 富士フイルム株式会社 用紙乾燥装置及びインクジェットプリンタ
JP2018155457A (ja) * 2017-03-17 2018-10-04 株式会社リコー 乾燥装置、画像形成装置および乾燥方法
JP2019534172A (ja) * 2016-09-09 2019-11-28 ヒューレット−パッカード デベロップメント カンパニー エル．ピー．Ｈｅｗｌｅｔｔ‐Ｐａｃｋａｒｄ Ｄｅｖｅｌｏｐｍｅｎｔ Ｃｏｍｐａｎｙ， Ｌ．Ｐ． 印刷媒体処理
JP2021035761A (ja) * 2019-08-21 2021-03-04 株式会社リコー 加熱装置、乾燥装置、液体を吐出する装置
JP2021049671A (ja) * 2019-09-24 2021-04-01 株式会社リコー 乾燥装置、シートの乾燥と矯正を行う装置、印刷装置、印刷システム
CN113226774A (zh) * 2019-01-09 2021-08-06 惠普发展公司，有限责任合伙企业 确定用于固化图像的参数

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JP2012006340A (ja) * 2010-06-28 2012-01-12 Fujifilm Corp 画像記録装置および乾燥制御方法

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JP2011183736A (ja) * 2010-03-10 2011-09-22 Fujifilm Corp 乾燥装置および乾燥方法、これらを用いた画像形成装置および画像形成方法
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Publication number Priority date Publication date Assignee Title
JP2016168805A (ja) * 2015-03-16 2016-09-23 富士フイルム株式会社 用紙乾燥装置及びインクジェットプリンタ
JP2019534172A (ja) * 2016-09-09 2019-11-28 ヒューレット−パッカード デベロップメント カンパニー エル．ピー．Ｈｅｗｌｅｔｔ‐Ｐａｃｋａｒｄ Ｄｅｖｅｌｏｐｍｅｎｔ Ｃｏｍｐａｎｙ， Ｌ．Ｐ． 印刷媒体処理
JP2018155457A (ja) * 2017-03-17 2018-10-04 株式会社リコー 乾燥装置、画像形成装置および乾燥方法
JP7013659B2 (ja) 2017-03-17 2022-02-01 株式会社リコー 乾燥装置、および画像形成装置
CN113226774A (zh) * 2019-01-09 2021-08-06 惠普发展公司，有限责任合伙企业 确定用于固化图像的参数
JP2022515407A (ja) * 2019-01-09 2022-02-18 ヒューレット－パッカード デベロップメント カンパニー エル．ピー． イメージを硬化させるためのパラメータを求める
EP3873744A4 (fr) * 2019-01-09 2022-07-06 Hewlett-Packard Development Company, L.P. Détermination d'un paramètre pour le durcissement d'images
JP2021035761A (ja) * 2019-08-21 2021-03-04 株式会社リコー 加熱装置、乾燥装置、液体を吐出する装置
JP7484488B2 (ja) 2019-08-21 2024-05-16 株式会社リコー 加熱装置、乾燥装置、液体を吐出する装置
JP2021049671A (ja) * 2019-09-24 2021-04-01 株式会社リコー 乾燥装置、シートの乾燥と矯正を行う装置、印刷装置、印刷システム

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