EP0322076A3 - Print head platen gap adjustment mechanism - Google Patents

Print head platen gap adjustment mechanism Download PDF

Info

Publication number
EP0322076A3
EP0322076A3 EP88202964A EP88202964A EP0322076A3 EP 0322076 A3 EP0322076 A3 EP 0322076A3 EP 88202964 A EP88202964 A EP 88202964A EP 88202964 A EP88202964 A EP 88202964A EP 0322076 A3 EP0322076 A3 EP 0322076A3
Authority
EP
European Patent Office
Prior art keywords
adjustment
print head
working distance
actuating element
adjustment mechanism
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Withdrawn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
EP88202964A
Other languages
German (de)
French (fr)
Other versions
EP0322076A2 (en
Inventor
Manfred Adamek
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.)
Philips Intellectual Property and Standards GmbH
Koninklijke Philips NV
Original Assignee
Philips Patentverwaltung GmbH
Philips Gloeilampenfabrieken NV
Koninklijke Philips Electronics 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 Philips Patentverwaltung GmbH, Philips Gloeilampenfabrieken NV, Koninklijke Philips Electronics NV filed Critical Philips Patentverwaltung GmbH
Publication of EP0322076A2 publication Critical patent/EP0322076A2/en
Publication of EP0322076A3 publication Critical patent/EP0322076A3/en
Withdrawn legal-status Critical Current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

Landscapes

  • Common Mechanisms (AREA)
  • Handling Of Sheets (AREA)

Abstract

Die Erfindung bezieht sich auf eine Vorrichtung zum Einstellen des Abstandes zwischen einem Druckwiderlager und einem Druckkopf, mit einem kinematisch mit dem Druck­ kopf gekoppelten und über ein Betätigungselement einstell­ baren Verstellelement sowie mit Haltemitteln zur Fixierung des Verschiebeweges des Druckkopfes bei einem maximalen Freiabstand und bei einem Arbeitsabstand. Auf einfache Weise ist ein für die jeweilige Art eines Schreibträgers optimaler Arbeitsabstand dadurch einstellbar, daß das Betätigungselement (9,29,33) über eine in Verstellrichtung bei Überschreiten einer vorgegebenen Verstellkraft nach­ giebige Rutschkupplung (12,31) mit dem Verstellelement gekoppelt ist, daß der verfügbare Verstellweg des Betäti­ gungselements (9,29,33) den Verstellbereich des Verstell­ elements (6,27) in beiden Richtungen in der Weise über­ schreitet, daß sowohl beim Anliegen des Druckkopfes (3) am vor dem Druckwiderlager (2) eingebrachten Schriftträ­ ger (1) als auch beim Erreichen des Freiabstandes eine Weiterbewegung des Betätigungselements (9,29,33) relativ zum Verstellelement (6,27) möglich ist, und daß die Fixierung des Arbeitsabstandes durch eine auf das Betätigungselement (9,29,33) einwirkende Haltekraft bewirkt ist. The invention relates to a device for Setting the distance between a pressure abutment and a printhead, with a kinematic with the print head coupled and adjust via an actuator adjustable adjustment element and with holding means for fixation the displacement of the print head at a maximum Clearance and at a working distance. In simple Wise is one for each type of writing medium optimal working distance adjustable that the Actuating element (9, 29, 33) in the direction of adjustment when a predetermined adjustment force is exceeded Slip clutch (12, 31) with the adjustment element is coupled that the available adjustment of the actuator tion element (9, 29, 33) the adjustment range of the adjustment elements (6.27) in both directions in the way above steps that both when the print head (3) on in front of the pressure abutment (2) eng (1) as well as one when the clearance is reached Further movement of the actuating element (9, 29, 33) relative to the adjusting element (6.27) is possible, and that the Fixing the working distance by one on the Actuating element (9, 29, 33) holding force is effected.

EP88202964A 1987-12-23 1988-12-19 Print head platen gap adjustment mechanism Withdrawn EP0322076A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3743677 1987-12-23
DE19873743677 DE3743677A1 (en) 1987-12-23 1987-12-23 DEVICE FOR ADJUSTING THE DISTANCE BETWEEN A PRINTER BEARING AND A PRINT HEAD

Publications (2)

Publication Number Publication Date
EP0322076A2 EP0322076A2 (en) 1989-06-28
EP0322076A3 true EP0322076A3 (en) 1989-11-08

Family

ID=6343338

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88202964A Withdrawn EP0322076A3 (en) 1987-12-23 1988-12-19 Print head platen gap adjustment mechanism

Country Status (3)

Country Link
EP (1) EP0322076A3 (en)
JP (1) JPH023361A (en)
DE (1) DE3743677A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5135316A (en) * 1990-05-29 1992-08-04 Juki Corporation Automatic print head position adjusting mechanism

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2294854A1 (en) * 1974-12-19 1976-07-16 Olivetti & Co Spa ADJUSTMENT DEVICE FOR MOVING A PRINT HEAD RELATIVE TO A PRINTING ROLLER
DE3112079A1 (en) * 1981-03-27 1982-11-25 Triumph-Adler Aktiengesellschaft für Büro- und Informationstechnik, 8500 Nürnberg DEVICE FOR LIFTING THE PRINT HEAD FROM THE PRINT REMOTE
US4444521A (en) * 1982-08-02 1984-04-24 United Systems Corporation Print medium advancing mechanism including print head retraction
EP0194844A2 (en) * 1985-03-11 1986-09-17 Oki Electric Industry Company, Limited Platen gap adjusting mechanism for a printer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2294854A1 (en) * 1974-12-19 1976-07-16 Olivetti & Co Spa ADJUSTMENT DEVICE FOR MOVING A PRINT HEAD RELATIVE TO A PRINTING ROLLER
DE3112079A1 (en) * 1981-03-27 1982-11-25 Triumph-Adler Aktiengesellschaft für Büro- und Informationstechnik, 8500 Nürnberg DEVICE FOR LIFTING THE PRINT HEAD FROM THE PRINT REMOTE
US4444521A (en) * 1982-08-02 1984-04-24 United Systems Corporation Print medium advancing mechanism including print head retraction
EP0194844A2 (en) * 1985-03-11 1986-09-17 Oki Electric Industry Company, Limited Platen gap adjusting mechanism for a printer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 11, Nr. 234 (M-611)[2681], 30. Juli 1987; & JP-A-62 44 480 (NEC CORP.) 26-02-1987 *

Also Published As

Publication number Publication date
JPH023361A (en) 1990-01-08
DE3743677A1 (en) 1989-07-06
EP0322076A2 (en) 1989-06-28

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