EP0393759A3 - Print gap adjustment mechanism in a printer - Google Patents

Print gap adjustment mechanism in a printer Download PDF

Info

Publication number
EP0393759A3
EP0393759A3 EP19900200897 EP90200897A EP0393759A3 EP 0393759 A3 EP0393759 A3 EP 0393759A3 EP 19900200897 EP19900200897 EP 19900200897 EP 90200897 A EP90200897 A EP 90200897A EP 0393759 A3 EP0393759 A3 EP 0393759A3
Authority
EP
European Patent Office
Prior art keywords
und
daß
print head
printer
druckkopf
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
EP19900200897
Other languages
German (de)
French (fr)
Other versions
EP0393759B1 (en
EP0393759A2 (en
Inventor
Rolf Kirchhoff
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.)
PSI Printer Systems International GmbH
Original Assignee
PSI Printer Systems International GmbH
Philips Patentverwaltung GmbH
Philips Gloeilampenfabrieken NV
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 PSI Printer Systems International GmbH, Philips Patentverwaltung GmbH, Philips Gloeilampenfabrieken NV filed Critical PSI Printer Systems International GmbH
Publication of EP0393759A2 publication Critical patent/EP0393759A2/en
Publication of EP0393759A3 publication Critical patent/EP0393759A3/en
Application granted granted Critical
Publication of EP0393759B1 publication Critical patent/EP0393759B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B41J25/00—Actions or mechanisms not otherwise provided for
    • B41J25/304—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
    • B41J25/308—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with print gap adjustment mechanisms
    • B41J25/3088—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with print gap adjustment mechanisms with print gap adjustment means on the printer frame, e.g. for rotation of an eccentric carriage guide shaft
    • 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
    • B41J25/00—Actions or mechanisms not otherwise provided for
    • B41J25/304—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
    • B41J25/308—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with print gap adjustment mechanisms

Landscapes

  • Common Mechanisms (AREA)
  • Character Spaces And Line Spaces In Printers (AREA)

Abstract

Zur einfachen und genauen Einstellung eines Druckspaltes (19) bei einem Drucker, z. B. bei einem Matrixnadeldrucker, wird vorgeschlaglen

  • a) daß der Druckkopf (2) zwischen zwei Schaltpunkten (13a, 13b) mehrfach hin und her bewegt und dabei gleichzeitig in Richtung auf das Druckwiderlager (9) vorwärts bewegt wird,
  • b) daß die Berührung zwischen Druckwiderlager (9) und Druckkopf (2) durch Veränderung eines die Hin- und Herbewegung charakterisierenden Paramters ermittelt wird,
  • c) daß diese Veränderung bei Erreichen eines bestimmten Wertes zum Stillstand der Vorwärtsbewegung führt und
  • d) daß der Druckkopf (2), ausgehend von dieser Stellung mit dem Druckspalt "Null", um den gewünschten Wert des Druckspaltes (19) zurück bewegt wird.
    • For simple and precise setting of a printing gap (19) in a printer, e.g. B. in a dot matrix printer, is suggested
  • a) that the print head (2) moves back and forth several times between two switching points (13a, 13b) and at the same time is moved forward in the direction of the print abutment (9),
  • b) that the contact between the pressure abutment (9) and the print head (2) is determined by changing a parameter that characterizes the back and forth movement,
  • c) that this change leads to a standstill of the forward movement when a certain value is reached, and
  • d) that the print head (2), starting from this position with the printing gap "zero", is moved back by the desired value of the printing gap (19).

    • EP90200897A 1989-04-21 1990-04-12 Print gap adjustment mechanism in a printer Expired - Lifetime EP0393759B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE3913073 1989-04-21
    DE3913073A DE3913073A1 (en) 1989-04-21 1989-04-21 METHOD FOR ADJUSTING A PRINT GAP IN A PRINTER

    Publications (3)

    Publication Number Publication Date
    EP0393759A2 EP0393759A2 (en) 1990-10-24
    EP0393759A3 true EP0393759A3 (en) 1991-07-24
    EP0393759B1 EP0393759B1 (en) 1994-07-06

    Family

    ID=6379107

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP90200897A Expired - Lifetime EP0393759B1 (en) 1989-04-21 1990-04-12 Print gap adjustment mechanism in a printer

    Country Status (4)

    Country Link
    US (1) US5009526A (en)
    EP (1) EP0393759B1 (en)
    JP (1) JPH02295781A (en)
    DE (2) DE3913073A1 (en)

    Families Citing this family (13)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE4113648A1 (en) * 1991-04-26 1992-10-29 Philips Patentverwaltung METHOD FOR ADJUSTING A PRINT SPLIT IN A PRINTER, E.g. A MATRIX PRINTER, AND ARRANGEMENT FOR IMPLEMENTING THE METHOD
    US5227809A (en) * 1991-06-17 1993-07-13 Tektronix, Inc. Automatic print head spacing mechanism for ink jet printer
    JPH0538851A (en) * 1991-08-07 1993-02-19 Seiko Epson Corp Printing apparatus
    US5518324A (en) * 1993-01-29 1996-05-21 International Business Machines Corporation Platen to print head gap adjustment arrangement
    US5529405A (en) * 1993-02-01 1996-06-25 International Business Machines Corporation Manual control/override for automatic forms thickness adjustment
    JP2880627B2 (en) * 1993-06-25 1999-04-12 東芝テック株式会社 Print gap adjustment device
    JP3019129B2 (en) * 1993-12-09 2000-03-13 セイコーエプソン株式会社 Automatic platen gap adjustment device for printer
    US5366301A (en) * 1993-12-14 1994-11-22 Hewlett-Packard Company Record media gap adjustment system for use in printers
    US5488396A (en) * 1994-03-07 1996-01-30 Tektronix, Inc. Printer print head positioning apparatus and method
    US5570959A (en) * 1994-10-28 1996-11-05 Fujitsu Limited Method and system for printing gap adjustment
    US5821952A (en) * 1996-09-06 1998-10-13 Tektronix, Inc. Method for automatic print head spacing in an ink jet printer
    DE19703883A1 (en) * 1997-02-03 1998-08-06 Psi Printer Systems Internatio Device for setting the printing gap, esp. for a matrix printer
    DE19813899A1 (en) * 1998-03-28 1999-09-30 Psi Printer Systems Internatio Printers, especially dot matrix printers

    Citations (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US4652153A (en) * 1984-07-25 1987-03-24 Oki Electric Industry Co., Ltd. Wire dot-matrix printer
    US4676675A (en) * 1984-05-09 1987-06-30 Brother Kogyo Kabushiki Kaisha Media thickness compensating device for a printer
    EP0292102A1 (en) * 1987-03-24 1988-11-23 Fujitsu Limited Device for monitoring the thickness of printing sheets in a printer

    Family Cites Families (11)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US3983803A (en) * 1973-09-27 1976-10-05 Sperry Rand Corporation Automatic print gap adjustment arrangement
    US4173927A (en) * 1976-04-01 1979-11-13 U.S. Philips Corporation Printing device
    DE2651884C3 (en) * 1976-11-13 1981-05-14 Philips Patentverwaltung Gmbh, 2000 Hamburg Device for electromechanical distance control of a print head from the platen
    DE2752061C3 (en) * 1977-11-22 1981-02-12 Philips Patentverwaltung Gmbh, 2000 Hamburg Device for adjusting the distance of a print head perpendicular to the platen
    JPS6371375A (en) * 1986-09-13 1988-03-31 Ricoh Co Ltd Printer
    JPS63112182A (en) * 1986-10-31 1988-05-17 Toshiba Corp Printer device
    DE3706573A1 (en) * 1987-02-28 1988-09-08 Mannesmann Ag DEVICE FOR ADJUSTING A PRINT HEAD TO THICK PRINTED MATERIAL IN A OFFICE MACHINE, IN PARTICULAR IN A SPARBOOK OR RECEIPT PRINTER
    JPS63265649A (en) * 1987-04-23 1988-11-02 Brother Ind Ltd Printer
    JPS648056A (en) * 1987-06-30 1989-01-12 Konishiroku Photo Ind Printing head compression device
    US4886380A (en) * 1987-09-01 1989-12-12 Primages, Inc. Piezoelectric controlled electromagnetically driven printing
    CN1013840B (en) * 1988-01-28 1991-09-11 精工爱普生株式会社 Mechanism of automatically adjusting platen gap in printers

    Patent Citations (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US4676675A (en) * 1984-05-09 1987-06-30 Brother Kogyo Kabushiki Kaisha Media thickness compensating device for a printer
    US4652153A (en) * 1984-07-25 1987-03-24 Oki Electric Industry Co., Ltd. Wire dot-matrix printer
    EP0292102A1 (en) * 1987-03-24 1988-11-23 Fujitsu Limited Device for monitoring the thickness of printing sheets in a printer

    Also Published As

    Publication number Publication date
    DE3913073A1 (en) 1990-10-25
    EP0393759B1 (en) 1994-07-06
    JPH02295781A (en) 1990-12-06
    EP0393759A2 (en) 1990-10-24
    DE59006336D1 (en) 1994-08-11
    US5009526A (en) 1991-04-23

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