DE2844166A1 - Elektrophotographische kopieranlage mit veraenderlicher vergroesserungseinrichtung - Google Patents

Elektrophotographische kopieranlage mit veraenderlicher vergroesserungseinrichtung

Info

Publication number
DE2844166A1
DE2844166A1 DE2844166A DE2844166A DE2844166A1 DE 2844166 A1 DE2844166 A1 DE 2844166A1 DE 2844166 A DE2844166 A DE 2844166A DE 2844166 A DE2844166 A DE 2844166A DE 2844166 A1 DE2844166 A1 DE 2844166A1
Authority
DE
Germany
Prior art keywords
original
magnification
optical
light
image
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
DE2844166A
Other languages
German (de)
English (en)
Other versions
DE2844166C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
Masaya Ogawa
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.)
Minolta Co Ltd
Original Assignee
Minolta 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 JP52122108A external-priority patent/JPS598810B2/ja
Priority claimed from JP12210777A external-priority patent/JPS5832687B2/ja
Priority claimed from JP17119677U external-priority patent/JPS595858Y2/ja
Priority claimed from JP15320577A external-priority patent/JPS5842456B2/ja
Application filed by Minolta Co Ltd filed Critical Minolta Co Ltd
Publication of DE2844166A1 publication Critical patent/DE2844166A1/de
Application granted granted Critical
Publication of DE2844166C2 publication Critical patent/DE2844166C2/de
Granted 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
    • G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
    • G03G15/041—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with variable magnification

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Systems Of Projection Type Copiers (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
  • Variable Magnification In Projection-Type Copying Machines (AREA)
DE2844166A 1977-10-11 1978-10-10 Elektrophotographische kopieranlage mit veraenderlicher vergroesserungseinrichtung Granted DE2844166A1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP52122108A JPS598810B2 (ja) 1977-10-11 1977-10-11 走査露光型複写機
JP12210777A JPS5832687B2 (ja) 1977-10-11 1977-10-11 投影光学系の変倍方法
JP17119677U JPS595858Y2 (ja) 1977-12-19 1977-12-19 スリット露光型複写機
JP15320577A JPS5842456B2 (ja) 1977-12-19 1977-12-19 複写機等における倍率変更装置

Publications (2)

Publication Number Publication Date
DE2844166A1 true DE2844166A1 (de) 1979-04-12
DE2844166C2 DE2844166C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1987-06-11

Family

ID=27470836

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2844166A Granted DE2844166A1 (de) 1977-10-11 1978-10-10 Elektrophotographische kopieranlage mit veraenderlicher vergroesserungseinrichtung

Country Status (2)

Country Link
US (1) US4243312A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2844166A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0025482A1 (en) * 1979-09-17 1981-03-25 International Business Machines Corporation Electrophotographic copier with aperture stop in optical system
DE3035953A1 (de) * 1980-09-24 1982-05-19 Canon K.K., Tokyo Fotokopiergeraet
DE3238140A1 (de) * 1981-11-02 1983-05-11 Xerox Corp., 14644 Rochester, N.Y. Kopiergeraet mit veraenderbarer vergroesserung
EP0302743A3 (en) * 1987-08-06 1989-03-08 Kabushiki Kaisha Toshiba Optical reading apparatus

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5648640A (en) * 1979-09-27 1981-05-01 Olympus Optical Co Ltd Book carrier conveying device of electrophotographic copier
JP2816690B2 (ja) * 1988-12-19 1998-10-27 旭光学工業株式会社 複写機の光量補正装置
JP2687523B2 (ja) * 1988-12-20 1997-12-08 ミノルタ株式会社 露光装置の照度むら補正装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1935618A1 (de) * 1969-07-14 1971-02-04 Canon Kk Fotokopiergeraet
US3917393A (en) * 1973-09-21 1975-11-04 Rank Xerox Ltd Varioslit
DE2627361A1 (de) * 1975-06-20 1976-12-30 Xerox Corp Geraet zum betrachten und projizieren eines originals auf eine bewegliche bildplatte, insbesondere in einem elektrostatographischen kopiergeraet

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1589479A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1968-09-25 1970-03-31
JPS5241860Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1973-02-27 1977-09-22
JPS5626026B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1973-12-28 1981-06-16
JPS567947Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1975-04-09 1981-02-21
US4095880A (en) * 1975-06-27 1978-06-20 Xerox Corporation Extended range variable magnification reproduction machine
JPS5841497B2 (ja) * 1976-05-31 1983-09-12 ミノルタ株式会社 スリット露光型複写機における露光量調整装置
DE2626917C3 (de) * 1976-06-16 1980-11-20 Canon K.K., Tokio Fotokopiergerät
US4080062A (en) * 1976-11-24 1978-03-21 Canon Kabushiki Kaisha Variable magnification optical mechanism
JPS5365736A (en) * 1976-11-25 1978-06-12 Ricoh Co Ltd Variable magnification copier

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1935618A1 (de) * 1969-07-14 1971-02-04 Canon Kk Fotokopiergeraet
US3917393A (en) * 1973-09-21 1975-11-04 Rank Xerox Ltd Varioslit
DE2627361A1 (de) * 1975-06-20 1976-12-30 Xerox Corp Geraet zum betrachten und projizieren eines originals auf eine bewegliche bildplatte, insbesondere in einem elektrostatographischen kopiergeraet

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0025482A1 (en) * 1979-09-17 1981-03-25 International Business Machines Corporation Electrophotographic copier with aperture stop in optical system
DE3035953A1 (de) * 1980-09-24 1982-05-19 Canon K.K., Tokyo Fotokopiergeraet
DE3238140A1 (de) * 1981-11-02 1983-05-11 Xerox Corp., 14644 Rochester, N.Y. Kopiergeraet mit veraenderbarer vergroesserung
EP0302743A3 (en) * 1987-08-06 1989-03-08 Kabushiki Kaisha Toshiba Optical reading apparatus

Also Published As

Publication number Publication date
US4243312A (en) 1981-01-06
DE2844166C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1987-06-11

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee