DE69121730D1 - Gradationssteuerschaltung für lineare thermische Drucker - Google Patents

Gradationssteuerschaltung für lineare thermische Drucker

Info

Publication number
DE69121730D1
DE69121730D1 DE69121730T DE69121730T DE69121730D1 DE 69121730 D1 DE69121730 D1 DE 69121730D1 DE 69121730 T DE69121730 T DE 69121730T DE 69121730 T DE69121730 T DE 69121730T DE 69121730 D1 DE69121730 D1 DE 69121730D1
Authority
DE
Germany
Prior art keywords
control circuit
linear thermal
gradation control
thermal printers
printers
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.)
Expired - Fee Related
Application number
DE69121730T
Other languages
English (en)
Other versions
DE69121730T2 (de
Inventor
Toshiharu Aoyagi
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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
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
Priority claimed from JP194190A external-priority patent/JPH03207674A/ja
Priority claimed from JP5746090A external-priority patent/JPH03258563A/ja
Priority claimed from JP15819090A external-priority patent/JPH0447957A/ja
Application filed by Seiko Instruments Inc filed Critical Seiko Instruments Inc
Application granted granted Critical
Publication of DE69121730D1 publication Critical patent/DE69121730D1/de
Publication of DE69121730T2 publication Critical patent/DE69121730T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/401—Compensating positionally unequal response of the pick-up or reproducing head
    • H04N1/4015—Compensating positionally unequal response of the pick-up or reproducing head of the reproducing head
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/40025—Circuits exciting or modulating particular heads for reproducing continuous tone value scales
    • H04N1/40031—Circuits exciting or modulating particular heads for reproducing continuous tone value scales for a plurality of reproducing elements simultaneously

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Electronic Switches (AREA)
DE69121730T 1990-01-09 1991-01-07 Gradationssteuerschaltung für lineare thermische Drucker Expired - Fee Related DE69121730T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP194190A JPH03207674A (ja) 1990-01-09 1990-01-09 ラインプリンタの階調制御装置
JP5746090A JPH03258563A (ja) 1990-03-08 1990-03-08 ラインプリンタの階調制御装置
JP15819090A JPH0447957A (ja) 1990-06-15 1990-06-15 ラインプリンタ

Publications (2)

Publication Number Publication Date
DE69121730D1 true DE69121730D1 (de) 1996-10-10
DE69121730T2 DE69121730T2 (de) 1997-01-16

Family

ID=27275141

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69121730T Expired - Fee Related DE69121730T2 (de) 1990-01-09 1991-01-07 Gradationssteuerschaltung für lineare thermische Drucker

Country Status (3)

Country Link
US (1) US5216440A (de)
EP (1) EP0437236B1 (de)
DE (1) DE69121730T2 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU691822B2 (en) * 1993-06-17 1998-05-28 Datametrics Corporation Thermal printer control system
US5519426A (en) * 1993-11-01 1996-05-21 Lasermaster Corporation Method for controlling a thermal printer to increase resolution
US5608442A (en) * 1994-08-31 1997-03-04 Lasermaster Corporation Heating control for thermal printers
US5608747A (en) * 1995-04-13 1997-03-04 Eastman Kodak Company Thermal cross-talk compensating current driver for laser diode array
US5825394A (en) * 1996-02-20 1998-10-20 Lasermaster Corporation Thermal print head calibration and operation method for fixed imaging elements
JP3530680B2 (ja) * 1996-06-18 2004-05-24 キヤノン株式会社 画像処理装置およびその方法
US6102513A (en) * 1997-09-11 2000-08-15 Eastman Kodak Company Ink jet printing apparatus and method using timing control of electronic waveforms for variable gray scale printing without artifacts

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6013571A (ja) * 1983-07-04 1985-01-24 Sony Corp 印画装置
JPS6266953A (ja) * 1985-09-19 1987-03-26 Tokyo Electric Co Ltd サ−マルヘツドの電源回路
JPS62256575A (ja) * 1986-04-30 1987-11-09 Fuji Xerox Co Ltd 感熱記録装置
US4758966A (en) * 1986-05-05 1988-07-19 Ncr Canada Ltd. - Ncr Canada Ltee Thermal printing apparatus and method
JP2575728B2 (ja) * 1987-09-01 1997-01-29 株式会社東芝 感熱記録制御装置
US4827279A (en) * 1988-06-16 1989-05-02 Eastman Kodak Company Process for correcting across-the-head nonuniformity in thermal printers

Also Published As

Publication number Publication date
EP0437236A3 (en) 1992-10-28
DE69121730T2 (de) 1997-01-16
EP0437236B1 (de) 1996-09-04
EP0437236A2 (de) 1991-07-17
US5216440A (en) 1993-06-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee