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EP0026652A1 - Dispositif d'alignement des caractères dans une imprimante en série - Google Patents

Dispositif d'alignement des caractères dans une imprimante en série Download PDF

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Publication number
EP0026652A1
EP0026652A1 EP80303396A EP80303396A EP0026652A1 EP 0026652 A1 EP0026652 A1 EP 0026652A1 EP 80303396 A EP80303396 A EP 80303396A EP 80303396 A EP80303396 A EP 80303396A EP 0026652 A1 EP0026652 A1 EP 0026652A1
Authority
EP
European Patent Office
Prior art keywords
print
slugs
hammer
character
alignment
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.)
Withdrawn
Application number
EP80303396A
Other languages
German (de)
English (en)
Inventor
Richard G. Crystal
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.)
Xerox Corp
Original Assignee
Xerox Corp
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 Xerox Corp filed Critical Xerox Corp
Publication of EP0026652A1 publication Critical patent/EP0026652A1/fr
Withdrawn legal-status Critical Current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
    • B41J1/00—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies
    • B41J1/22—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies mounted on carriers rotatable for selection
    • B41J1/24—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies mounted on carriers rotatable for selection the plane of the type or die face being perpendicular to the axis of rotation
    • B41J1/28—Carriers stationary for impression, e.g. with the types or dies not moving relative to the carriers
    • B41J1/30—Carriers stationary for impression, e.g. with the types or dies not moving relative to the carriers with the types or dies moving relative to the carriers or mounted on flexible carriers
    • 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
    • B41J9/00—Hammer-impression mechanisms
    • B41J9/02—Hammers; Arrangements thereof
    • B41J9/133—Construction of hammer body or tip

Definitions

  • the invention relates to serial printers and, more particularly, to high-speed serial printers having print fonts arranged upon a disc member, which rotates the fonts past an impacting printing hammer at a print station generally designated as 2.
  • the invention as claimed is intended to provide a remedy. It solves the problem of how to design an alignment print hammer for aligning type fonts that will work satisfactorily even when the type fonts are relatively close together. This is accomplished by tapering the sides of the print hammer or type slugs or both. Both is preferable as explained below.
  • the Figures show a serial printing apparatus including a print wheel disc generally designated as 1, a motor 5 for driving the print wheel and a print hammer 15 for striking and aligning the type font or character slugs 11.
  • the print wheel 1 is mounted for rotation on shaft 3 of motor 5.
  • Motor 5 can move wheel 1 in either a clockwise or counterclockwise direction as indicated by arrows 7.
  • Print wheel 1 contains a plurality of outward extending beams or spokes 9 having print heads 11 formed thereon.
  • characters 13 On one face of print heads 11 are formed characters 13.
  • the face of print heads 11 facing detent alignment hammer 15 is dihedral alignment surface 17 shaped to mate with the dihedral alignment opening 19 in alignment print hammer 15.
  • the beams or spokes are bonded in hub 21, which is fitted to shaft 3 of motor 5.
  • FIG. 2 The prior art hammer and print heads are shown in Figure 2.
  • the print hammer 15 is roughly aligned with the type slug lla. It can be seen that as hammer 15 is moved by, for example, a solenoid towards the type font lla in direction 27 and engages surface 17, that further movement in direction 27 towards the print ribbon (not shown) will cause hammer 15 to strike edge 28 of print head llb causing interference with the smooth flight of print head lla and causing a twisting torque of the beam supporting head llb and undesirable adjacent character printing.
  • FIG 3 there is seen a detent alignment print hammer 15 and type fonts or character slugs lla and llb in accordance with this invention.
  • a portion of the sides of print hammer 15 has been removed to form tapered portion 29.
  • character slug llb the adjacent slug, will be swept aside by print hammer taper surface 29 instead of being directly impacted.
  • a further improvement in operation is obtained where the type slugs are also tapered as shown in Figure 3.
  • the sides of the larger type slugs represented by slug llb in Figure 3 are removed to form slanted surface 31.

Landscapes

  • Accessory Devices And Overall Control Thereof (AREA)
EP80303396A 1979-10-01 1980-09-26 Dispositif d'alignement des caractères dans une imprimante en série Withdrawn EP0026652A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US8063579A 1979-10-01 1979-10-01
US80635 1993-06-24

Publications (1)

Publication Number Publication Date
EP0026652A1 true EP0026652A1 (fr) 1981-04-08

Family

ID=22158622

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80303396A Withdrawn EP0026652A1 (fr) 1979-10-01 1980-09-26 Dispositif d'alignement des caractères dans une imprimante en série

Country Status (2)

Country Link
EP (1) EP0026652A1 (fr)
JP (1) JPS5656871A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5813404A (en) * 1995-10-20 1998-09-29 Aspect Medical Systems, Inc. Electrode connector system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3442365A (en) * 1967-09-29 1969-05-06 Friden Inc Font wheel aligning device
FR1575348A (fr) * 1967-08-02 1969-07-18
US3935937A (en) * 1973-11-08 1976-02-03 Pitney-Bowes, Inc. Plastic and metal article of manufacture
DE2836012A1 (de) * 1978-08-17 1980-02-21 Siemens Ag Vorrichtung zum abdrucken von typen auf einem aufzeichnungstraeger in druckgeraeten, insbesondere bei daten- oder fernschreibmaschinen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1575348A (fr) * 1967-08-02 1969-07-18
US3442365A (en) * 1967-09-29 1969-05-06 Friden Inc Font wheel aligning device
US3935937A (en) * 1973-11-08 1976-02-03 Pitney-Bowes, Inc. Plastic and metal article of manufacture
DE2836012A1 (de) * 1978-08-17 1980-02-21 Siemens Ag Vorrichtung zum abdrucken von typen auf einem aufzeichnungstraeger in druckgeraeten, insbesondere bei daten- oder fernschreibmaschinen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5813404A (en) * 1995-10-20 1998-09-29 Aspect Medical Systems, Inc. Electrode connector system

Also Published As

Publication number Publication date
JPS5656871A (en) 1981-05-19

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): CH DE FR GB IT

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19820316

RIN1 Information on inventor provided before grant (corrected)

Inventor name: CRYSTAL, RICHARD G.