DE3877051D1 - Elektrophotographisches aufnahmegeraet. - Google Patents

Elektrophotographisches aufnahmegeraet.

Info

Publication number
DE3877051D1
DE3877051D1 DE8888304044T DE3877051T DE3877051D1 DE 3877051 D1 DE3877051 D1 DE 3877051D1 DE 8888304044 T DE8888304044 T DE 8888304044T DE 3877051 T DE3877051 T DE 3877051T DE 3877051 D1 DE3877051 D1 DE 3877051D1
Authority
DE
Germany
Prior art keywords
recording device
electrophotographic recording
electrophotographic
recording
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
DE8888304044T
Other languages
English (en)
Other versions
DE3877051T2 (de
Inventor
Hideshi Ishihara
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 JP62114108A external-priority patent/JPS63279286A/ja
Priority claimed from JP62330808A external-priority patent/JPH01170971A/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of DE3877051D1 publication Critical patent/DE3877051D1/de
Publication of DE3877051T2 publication Critical patent/DE3877051T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0848—Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
    • G03G15/0849—Detection or control means for the developer concentration
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/55—Self-diagnostics; Malfunction or lifetime display
    • G03G15/553—Monitoring or warning means for exhaustion or lifetime end of consumables, e.g. indication of insufficient copy sheet quantity for a job
    • G03G15/556—Monitoring or warning means for exhaustion or lifetime end of consumables, e.g. indication of insufficient copy sheet quantity for a job for toner consumption, e.g. pixel counting, toner coverage detection or toner density measurement

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)
  • Color Electrophotography (AREA)
DE8888304044T 1987-05-11 1988-05-05 Elektrophotographisches aufnahmegeraet. Expired - Lifetime DE3877051T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP62114108A JPS63279286A (ja) 1987-05-11 1987-05-11 電子写真記録装置
JP62330808A JPH01170971A (ja) 1987-12-25 1987-12-25 電子写真記録装置

Publications (2)

Publication Number Publication Date
DE3877051D1 true DE3877051D1 (de) 1993-02-11
DE3877051T2 DE3877051T2 (de) 1993-04-29

Family

ID=26452950

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888304044T Expired - Lifetime DE3877051T2 (de) 1987-05-11 1988-05-05 Elektrophotographisches aufnahmegeraet.

Country Status (4)

Country Link
US (1) US4963927A (de)
EP (1) EP0291226B1 (de)
KR (1) KR920008752B1 (de)
DE (1) DE3877051T2 (de)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0296190A (ja) * 1988-10-03 1990-04-06 Fuji Photo Film Co Ltd 電子写真式平版印刷版用原版の処理方法
US5068806A (en) * 1988-12-02 1991-11-26 Spectra-Physics, Inc. Method of determining useful life of cartridge for an ink jet printer
US5247609A (en) * 1988-12-08 1993-09-21 Thermo Separation Products (California) Inc. Line density control for plotters
US5070362A (en) * 1989-02-21 1991-12-03 Minolta Camera Kabushiki Kaisha Image forming apparatus having a plurality of selectively operable developers
JP3033832B2 (ja) * 1990-01-17 2000-04-17 ミノルタ株式会社 作像装置
JPH0820806B2 (ja) * 1990-03-19 1996-03-04 富士ゼロックス株式会社 現像装置のトナー空検知装置
JP3018395B2 (ja) * 1990-05-15 2000-03-13 ミノルタ株式会社 画像形成装置のトナー濃度制御装置
US5155528A (en) * 1990-07-06 1992-10-13 Nippon Steel Corporation Apparatus for controlling concentration of toner in the liquid toner of a recording apparatus
JP3029648B2 (ja) * 1990-07-31 2000-04-04 株式会社東芝 画像形成装置
US5162849A (en) * 1990-11-23 1992-11-10 Konica Corporation Image forming apparatus having a developer deterioration detecting device
US5581326A (en) * 1991-02-22 1996-12-03 Canon Kabushiki Kaisha Image forming apparatus which supplies toner based on counted signal value
JP3120562B2 (ja) * 1992-05-29 2000-12-25 ミノルタ株式会社 現像装置
US5204699A (en) * 1992-09-14 1993-04-20 Xerox Corporation Apparatus for estimating toner usage
KR0132011B1 (ko) * 1994-02-28 1998-10-01 김광호 현상제 보유 레벨 검출 장치
US5604578A (en) * 1994-12-27 1997-02-18 Kabushiki Kaisha Toshiba Color image forming apparatus having a function of determining a charge value charged on a customer according to an amount of recording material
US5915155A (en) * 1995-01-12 1999-06-22 Ricoh Company, Ltd. Toner replenishing and developer replacing device for a developing unit of an image forming apparatus
JP3542394B2 (ja) * 1995-02-24 2004-07-14 キヤノン株式会社 画像形成装置
JP3589270B2 (ja) * 1996-10-21 2004-11-17 セイコーエプソン株式会社 画像形成方法
US5797061A (en) * 1997-05-12 1998-08-18 Lexmark International, Inc. Method and apparatus for measuring and displaying a toner tally for a printer
US5802420A (en) * 1997-05-12 1998-09-01 Lexmark International, Inc. Method and apparatus for predicting and displaying toner usage of a printer
US6494562B1 (en) 1998-09-03 2002-12-17 Hewlett-Packard Company Method and apparatus for identifying a sales channel
US6366744B1 (en) * 2000-06-22 2002-04-02 Hewlett-Packard Company Image forming systems and methods for determining whether an image job will be imaged
US6463224B1 (en) * 2000-07-21 2002-10-08 Hewlett-Packard Company Method and apparatus for determining when a quantity of toner in a region decreases to or below a predetermined quantity

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3693581A (en) * 1970-10-29 1972-09-26 Xerox Corp Toner dispenser circuit for electrostatographic apparatus
US3981272A (en) * 1974-11-20 1976-09-21 Xerox Corporation Mag brush housing with detachable sump section
US4026643A (en) * 1975-08-22 1977-05-31 Xerox Corporation Apparatus and method for measurement of the ratio of toner particle electrostatic charge to toner particle mass in electrostatographic devices
US4226525A (en) * 1976-10-19 1980-10-07 Ricoh Company, Ltd. Electrostatic copying machine
US4413264A (en) * 1981-12-28 1983-11-01 Pitney Bowes Inc. Print material supply control apparatus and method
JPS58221868A (ja) * 1982-06-18 1983-12-23 Konishiroku Photo Ind Co Ltd トナ−補給制御方法
JPS58224363A (ja) * 1982-06-23 1983-12-26 Ricoh Co Ltd 現像剤補給方法
JPS61156071A (ja) * 1984-12-27 1986-07-15 Fujitsu Ltd 印刷装置
US4721978A (en) * 1986-10-31 1988-01-26 Xerox Corporation Color toner concentration control system

Also Published As

Publication number Publication date
US4963927A (en) 1990-10-16
EP0291226B1 (de) 1992-12-30
DE3877051T2 (de) 1993-04-29
EP0291226A3 (en) 1989-06-14
EP0291226A2 (de) 1988-11-17
KR920008752B1 (ko) 1992-10-09
KR880014423A (ko) 1988-12-23

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)