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CA2204819A1 - A printer for printing on a continuous print medium - Google Patents

A printer for printing on a continuous print medium

Info

Publication number
CA2204819A1
CA2204819A1 CA002204819A CA2204819A CA2204819A1 CA 2204819 A1 CA2204819 A1 CA 2204819A1 CA 002204819 A CA002204819 A CA 002204819A CA 2204819 A CA2204819 A CA 2204819A CA 2204819 A1 CA2204819 A1 CA 2204819A1
Authority
CA
Canada
Prior art keywords
print medium
speed
ribbon
print
printing
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.)
Granted
Application number
CA002204819A
Other languages
French (fr)
Other versions
CA2204819C (en
Inventor
Anthony James Palmer
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.)
ITW Ltd
Original Assignee
ITW Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ITW Ltd filed Critical ITW Ltd
Publication of CA2204819A1 publication Critical patent/CA2204819A1/en
Application granted granted Critical
Publication of CA2204819C publication Critical patent/CA2204819C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • B41J17/00—Mechanisms for manipulating page-width impression-transfer material, e.g. carbon paper
    • B41J17/02—Feeding mechanisms
    • B41J17/04—Feed dependent on the record-paper feed, e.g. both moved at the same time
    • 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
    • B41J17/00—Mechanisms for manipulating page-width impression-transfer material, e.g. carbon paper
    • B41J17/02—Feeding mechanisms
    • B41J17/12—Special adaptations for ensuring maximum life

Landscapes

  • Impression-Transfer Materials And Handling Thereof (AREA)
  • Electronic Switches (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Photographic Developing Apparatuses (AREA)
  • Handling Of Continuous Sheets Of Paper (AREA)
  • Handling Of Sheets (AREA)

Abstract

A thermal printer for printing on a continuous print medium by ink transfer from a thermal print ribbon has a print head which is pivotally mounted and which is driven in an oscillatory nodding motion by means of a stepper motor so as repeatedly to bring a linear array of energisable printing elements to bear against a platen roller. Both the element array and the platen extend transversely to respective paths of travel of the print medium and the ribbon. The print medium is fed through the printer from an inlet region, between the platen and print head, and thence to an outlet region. The instantaneous rate of travel of the print medium past the print head is substantially the same as the rate of feed of print medium to the printer. Typically this rate is of the order of 250 to 400 mm per second.
The ribbon also travels between the print head and the platen, overlying the print medium and is driven in such a manner that it travels at the same rate as the print medium during each printing operation up to a speed equivalent to the maximum printing speed of the print head. This is achieved by driving the ribbon with a motor the speed of which is controlled according to the sensed speed of travel of the print medium, e.g. by coupling the motor to processing circuitry which takes an input signal from a shaft encoder associated with the platen roller. These methods of driving the ribbon have the advantage that the ribbon speed can be varied to take account of different print medium speeds, e.g.
due to the requirements of differing packaging processes, and also in response to transient variations in print medium speed during each printing operation. To restore the aspect ratio of characters when the print medium is travelling faster than the speed equivalent to the maximum speed of the print head, lines of dots are skipped.
CA002204819A 1996-06-24 1997-05-08 A printer for printing on a continuous print medium Expired - Fee Related CA2204819C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9613167.7A GB9613167D0 (en) 1996-06-24 1996-06-24 A printer for printing on a continuous print medium
GB9613167.7 1996-06-24

Publications (2)

Publication Number Publication Date
CA2204819A1 true CA2204819A1 (en) 1997-12-24
CA2204819C CA2204819C (en) 2001-10-23

Family

ID=10795762

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002204819A Expired - Fee Related CA2204819C (en) 1996-06-24 1997-05-08 A printer for printing on a continuous print medium

Country Status (8)

Country Link
EP (1) EP0816108B1 (en)
AT (1) ATE194101T1 (en)
AU (1) AU685727B1 (en)
CA (1) CA2204819C (en)
DE (1) DE69702371T2 (en)
GB (1) GB9613167D0 (en)
NO (1) NO972929L (en)
NZ (1) NZ328123A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1016535B1 (en) 1999-01-02 2006-07-19 Scheidt & Bachmann Gmbh Thermal transfer printer

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0036295A3 (en) * 1980-03-14 1981-10-07 Printos B.V. Hand-held printing apparatus
JPS5783471A (en) * 1980-11-14 1982-05-25 Canon Inc Thermal copying printer
US4933867A (en) * 1983-05-31 1990-06-12 Kabushiki Kaisha Toshiba Printing apparatus
JPS6071275A (en) * 1983-09-28 1985-04-23 Toshiba Corp Image output device
JPS61108588A (en) * 1984-11-01 1986-05-27 Hitachi Ltd Chart paper feed control method
US4915027A (en) * 1987-03-28 1990-04-10 Casio Computer Co., Ltd. Hand-held manually operable printing apparatus
JPH0286480A (en) * 1988-09-22 1990-03-27 Canon Inc Thermal transfer recording device
US5372439A (en) * 1992-12-18 1994-12-13 Zebra Technologies Corporation Thermal transfer printer with controlled ribbon feed
JPH06278334A (en) * 1993-01-27 1994-10-04 Ricoh Co Ltd Thermal transfer printer
GB2289652A (en) * 1994-05-26 1995-11-29 Illinois Tool Works Ink ribbon economy strategies for thermal printers.

Also Published As

Publication number Publication date
DE69702371D1 (en) 2000-08-03
ATE194101T1 (en) 2000-07-15
GB9613167D0 (en) 1996-08-28
EP0816108A1 (en) 1998-01-07
NO972929L (en) 1997-12-29
NZ328123A (en) 1998-09-24
DE69702371T2 (en) 2001-03-29
EP0816108B1 (en) 2000-06-28
CA2204819C (en) 2001-10-23
AU685727B1 (en) 1998-01-22
NO972929D0 (en) 1997-06-23

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Legal Events

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