DE69231022T2 - Verfahren zur Korrektur von Ungleichmässigkeiten in der Dichte eines Aufzeichnungskopfes und eine entsprechend ausgestattete Bilderzeugungsvorrichtung - Google Patents

Verfahren zur Korrektur von Ungleichmässigkeiten in der Dichte eines Aufzeichnungskopfes und eine entsprechend ausgestattete Bilderzeugungsvorrichtung

Info

Publication number
DE69231022T2
DE69231022T2 DE69231022T DE69231022T DE69231022T2 DE 69231022 T2 DE69231022 T2 DE 69231022T2 DE 69231022 T DE69231022 T DE 69231022T DE 69231022 T DE69231022 T DE 69231022T DE 69231022 T2 DE69231022 T2 DE 69231022T2
Authority
DE
Germany
Prior art keywords
density
image forming
forming apparatus
recording head
appropriately equipped
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 - Lifetime
Application number
DE69231022T
Other languages
English (en)
Other versions
DE69231022D1 (de
Inventor
Hiroshi Tajika
Masato Katayama
Noribumi Koitabashi
Miyuki Matsubara
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.)
Canon Inc
Original Assignee
Canon 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
Application filed by Canon Inc filed Critical Canon Inc
Application granted granted Critical
Publication of DE69231022D1 publication Critical patent/DE69231022D1/de
Publication of DE69231022T2 publication Critical patent/DE69231022T2/de
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
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/015—Ink jet characterised by the jet generation process
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/04508—Control methods or devices therefor, e.g. driver circuits, control circuits aiming at correcting other parameters
    • 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
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/015—Ink jet characterised by the jet generation process
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/04558—Control methods or devices therefor, e.g. driver circuits, control circuits detecting presence or properties of a dot on paper
    • 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
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/015—Ink jet characterised by the jet generation process
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/0458—Control methods or devices therefor, e.g. driver circuits, control circuits controlling heads based on heating elements forming bubbles
    • 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
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/21—Ink jet for multi-colour printing
    • B41J2/2132—Print quality control characterised by dot disposition, e.g. for reducing white stripes or banding
    • B41J2/2139—Compensation for malfunctioning nozzles creating dot place or dot size errors
    • 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
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
    • B41J29/393—Devices for controlling or analysing the entire machine ; Controlling or analysing mechanical parameters involving printing of test patterns
    • 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
DE69231022T 1991-09-11 1992-09-07 Verfahren zur Korrektur von Ungleichmässigkeiten in der Dichte eines Aufzeichnungskopfes und eine entsprechend ausgestattete Bilderzeugungsvorrichtung Expired - Lifetime DE69231022T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3231645A JP2974468B2 (ja) 1991-09-11 1991-09-11 画像形成装置及び画像形成方法

Publications (2)

Publication Number Publication Date
DE69231022D1 DE69231022D1 (de) 2000-06-15
DE69231022T2 true DE69231022T2 (de) 2000-09-28

Family

ID=16926748

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69231022T Expired - Lifetime DE69231022T2 (de) 1991-09-11 1992-09-07 Verfahren zur Korrektur von Ungleichmässigkeiten in der Dichte eines Aufzeichnungskopfes und eine entsprechend ausgestattete Bilderzeugungsvorrichtung

Country Status (5)

Country Link
US (2) US5528270A (de)
EP (1) EP0532248B1 (de)
JP (1) JP2974468B2 (de)
CA (1) CA2077854C (de)
DE (1) DE69231022T2 (de)

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Also Published As

Publication number Publication date
CA2077854A1 (en) 1993-03-12
JPH0569545A (ja) 1993-03-23
EP0532248A3 (en) 1993-10-06
EP0532248B1 (de) 2000-05-10
CA2077854C (en) 2000-11-14
JP2974468B2 (ja) 1999-11-10
US5528270A (en) 1996-06-18
US5946006A (en) 1999-08-31
DE69231022D1 (de) 2000-06-15
EP0532248A2 (de) 1993-03-17

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