EP0236773A3 - Print head platen distance adjusting device for a printer particularly for a matrix printer - Google Patents

Print head platen distance adjusting device for a printer particularly for a matrix printer Download PDF

Info

Publication number
EP0236773A3
EP0236773A3 EP87101985A EP87101985A EP0236773A3 EP 0236773 A3 EP0236773 A3 EP 0236773A3 EP 87101985 A EP87101985 A EP 87101985A EP 87101985 A EP87101985 A EP 87101985A EP 0236773 A3 EP0236773 A3 EP 0236773A3
Authority
EP
European Patent Office
Prior art keywords
print head
printer
cams
adjusting device
distance adjusting
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
EP87101985A
Other languages
German (de)
Other versions
EP0236773B1 (en
EP0236773A2 (en
Inventor
Gunter Dipl.-Ing. Gomoll (Fh)
Wolfgang Dipl.-Ing. Hauslaib (Fh)
Gustav Frank
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
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 Mannesmann AG filed Critical Mannesmann AG
Priority to AT87101985T priority Critical patent/ATE68137T1/en
Publication of EP0236773A2 publication Critical patent/EP0236773A2/en
Publication of EP0236773A3 publication Critical patent/EP0236773A3/en
Application granted granted Critical
Publication of EP0236773B1 publication Critical patent/EP0236773B1/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

Abstract

The print head is mounted on a carriage which, in turn, rides on a round bar which is transversely adjustable towards and away from the parallel running platen. The round bar rolls in horizontal oblong slots in side walls of the frame and has short, drum-shaped cams eccentrically connected to its ends, the cams being coaxial to each other and are held individually in abutment with reference surfaces that are individually adjustable on these side walls towards true parallelism; an adjusting lever is affixed to a third cam on the bar, and is coaxial to the two other cams, which lever is latchable in positions to thereby hold adjusted distances of the print head from the platen.
EP87101985A 1986-03-11 1987-02-12 Print head platen distance adjusting device for a printer particularly for a matrix printer Expired - Lifetime EP0236773B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87101985T ATE68137T1 (en) 1986-03-11 1987-02-12 DEVICE FOR ADJUSTING THE DISTANCE BETWEEN PRINT HEAD AND PRINT REST OF A PRINTER, ESPECIALLY. OF A MATRIX PRINTER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3608001 1986-03-11
DE19863608001 DE3608001A1 (en) 1986-03-11 1986-03-11 DEVICE FOR ADJUSTING THE DISTANCE BETWEEN PRINT HEAD AND WRITING REQUEST OF A PRINTER, IN PARTICULAR. A MATRIX PRINTER

Publications (3)

Publication Number Publication Date
EP0236773A2 EP0236773A2 (en) 1987-09-16
EP0236773A3 true EP0236773A3 (en) 1989-09-06
EP0236773B1 EP0236773B1 (en) 1991-10-09

Family

ID=6296025

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87101985A Expired - Lifetime EP0236773B1 (en) 1986-03-11 1987-02-12 Print head platen distance adjusting device for a printer particularly for a matrix printer

Country Status (5)

Country Link
US (1) US4720200A (en)
EP (1) EP0236773B1 (en)
JP (1) JPS62221571A (en)
AT (1) ATE68137T1 (en)
DE (2) DE3608001A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE86185T1 (en) * 1987-09-09 1993-03-15 Mannesmann Ag PARALLEL ADJUSTMENT DEVICE FOR A PRINT HEAD CARRIAGE GUIDE TO AN PRINT PLATE IN PRINTERS, ESPECIALLY IN MATRIX PRINTERS.
EP0308566B1 (en) * 1987-09-23 1992-12-16 MANNESMANN Aktiengesellschaft Office machine, in particular matrix printer, with print head/platen-gap adjustment
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
US4990004A (en) * 1988-10-12 1991-02-05 Brother Kogyo Kabushiki Kaisha Printer having head gap adjusting device
US5936651A (en) * 1988-12-30 1999-08-10 Canon Kabushiki Kaisha Recording medium conveying mechanism for image recording apparatus
US5000590A (en) * 1989-06-29 1991-03-19 Itt Corporation Print head adjustment mechanism
JPH04235070A (en) * 1991-01-09 1992-08-24 Brother Ind Ltd Printing hammer stroke control device of printing apparatus
US5473984A (en) * 1995-04-10 1995-12-12 Intermec Corporation Dynamically adjustable printhead assembly
JP3326780B2 (en) * 1995-04-28 2002-09-24 セイコーエプソン株式会社 Printer
US6315469B1 (en) * 2000-01-19 2001-11-13 Hewlett-Packard Company Tool and method for adjustment of printhead to platen spacing in a printer
JP5327449B2 (en) * 2009-02-09 2013-10-30 株式会社リコー Image forming apparatus
US9772576B1 (en) 2016-05-11 2017-09-26 Eastman Kodak Company Printhead focus adjustment mechanism including an eccentric pin
US9712712B1 (en) 2016-05-11 2017-07-18 Eastman Kodak Company In-situ printhead focus adjustment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3960256A (en) * 1974-10-21 1976-06-01 Digital Equipment Corporation Adjustable carriage apparatus
US4189244A (en) * 1977-11-21 1980-02-19 Data Products Corporation Platen gap adjuster
US4268177A (en) * 1978-11-01 1981-05-19 Plessey Peripheral Systems Paper thickness adjusting mechanism for impact printer
DE3008539A1 (en) * 1980-03-06 1981-09-10 Triumph-Adler Aktiengesellschaft für Büro- und Informationstechnik, 8500 Nürnberg ADJUSTING DEVICE OF THE RECORDING AGGREGATE TO WRITING U.AE. OFFICE MACHINES

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7140524U (en) * 1900-01-01 Nixdorf Ag
IT1021169B (en) * 1973-09-27 1978-01-30 Sperry Rand Corp METHOD AND DEVICE FOR AUTOMATICALLY ADJUSTING THE PRINT SPACE OF A PRINTER
US4023662A (en) * 1974-12-19 1977-05-17 Ing. C. Olivetti & C., S.P.A. Arrangement for adjusting the spacing between a print head and a platen
US4086997A (en) * 1977-03-07 1978-05-02 Wang Laboratories, Inc. Adjustable support for print head assembly
US4178106A (en) * 1977-11-25 1979-12-11 General Electric Company Print gap adjust mechanism for printers
JPS5649286A (en) * 1979-09-29 1981-05-02 Tokyo Electric Co Ltd Printer
JPS56117677A (en) * 1980-02-21 1981-09-16 Tokyo Electric Co Ltd Printing device
DE3014823C2 (en) * 1980-04-15 1986-10-09 Mannesmann AG, 4000 Düsseldorf Matrix printer with a print head that can be adjusted to adjust the printing gap
DE3026323C2 (en) * 1980-07-11 1982-04-08 Standard Elektrik Lorenz Ag, 7000 Stuttgart Machine frame for printing units
JPS58126180A (en) * 1982-01-25 1983-07-27 Oki Electric Ind Co Ltd Positioning mechanism of printing head
US4497588A (en) * 1982-04-20 1985-02-05 Nixdorf Computer Ag Printing or typing apparatus with a rotating platen as well as guide devices for the paper
JPS606490A (en) * 1983-06-24 1985-01-14 Hitachi Ltd Printing head feed apparatus
JPS60154091A (en) * 1984-01-23 1985-08-13 Tokyo Electric Co Ltd Apparatus for adjusting gap of printing head in printer
US4652153A (en) * 1984-07-25 1987-03-24 Oki Electric Industry Co., Ltd. Wire dot-matrix printer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3960256A (en) * 1974-10-21 1976-06-01 Digital Equipment Corporation Adjustable carriage apparatus
US4189244A (en) * 1977-11-21 1980-02-19 Data Products Corporation Platen gap adjuster
US4268177A (en) * 1978-11-01 1981-05-19 Plessey Peripheral Systems Paper thickness adjusting mechanism for impact printer
DE3008539A1 (en) * 1980-03-06 1981-09-10 Triumph-Adler Aktiengesellschaft für Büro- und Informationstechnik, 8500 Nürnberg ADJUSTING DEVICE OF THE RECORDING AGGREGATE TO WRITING U.AE. OFFICE MACHINES

Also Published As

Publication number Publication date
DE3608001C2 (en) 1989-04-06
EP0236773B1 (en) 1991-10-09
JPS62221571A (en) 1987-09-29
DE3608001A1 (en) 1987-09-24
US4720200A (en) 1988-01-19
DE3773509D1 (en) 1991-11-14
EP0236773A2 (en) 1987-09-16
ATE68137T1 (en) 1991-10-15

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