JPS57109964A - Copying machine having variable magnification - Google Patents

Copying machine having variable magnification

Info

Publication number
JPS57109964A
JPS57109964A JP56172688A JP17268881A JPS57109964A JP S57109964 A JPS57109964 A JP S57109964A JP 56172688 A JP56172688 A JP 56172688A JP 17268881 A JP17268881 A JP 17268881A JP S57109964 A JPS57109964 A JP S57109964A
Authority
JP
Japan
Prior art keywords
copying machine
variable magnification
magnification
variable
copying
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.)
Pending
Application number
JP56172688A
Other languages
English (en)
Inventor
Jii Miraa Uiriamu
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.)
Xerox Corp
Original Assignee
Xerox Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22752820&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JPS57109964(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Xerox Corp filed Critical Xerox Corp
Publication of JPS57109964A publication Critical patent/JPS57109964A/ja
Pending 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)
  • Control Of Direct Current Motors (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Control Of Stepping Motors (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Variable Magnification In Projection-Type Copying Machines (AREA)
JP56172688A 1980-11-03 1981-10-27 Copying machine having variable magnification Pending JPS57109964A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/203,174 US4316668A (en) 1980-11-03 1980-11-03 Image reduction servo system

Publications (1)

Publication Number Publication Date
JPS57109964A true JPS57109964A (en) 1982-07-08

Family

ID=22752820

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56172688A Pending JPS57109964A (en) 1980-11-03 1981-10-27 Copying machine having variable magnification

Country Status (9)

Country Link
US (1) US4316668A (ja)
EP (1) EP0051393B2 (ja)
JP (1) JPS57109964A (ja)
AR (1) AR240207A1 (ja)
AU (1) AU544000B2 (ja)
BR (1) BR8107050A (ja)
CA (1) CA1162585A (ja)
DE (1) DE3170752D1 (ja)
ES (1) ES506820A0 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60184237A (ja) * 1984-03-02 1985-09-19 Asahi Optical Co Ltd 変倍光学装置の制御回路

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3266787D1 (en) * 1981-06-18 1985-11-14 Toshiba Kk Optical system drive device for image formation apparatus
JPS5825663A (ja) * 1981-08-08 1983-02-15 Canon Inc 複写装置
JPS5868072A (ja) * 1981-10-19 1983-04-22 Canon Inc 変倍機能を有する複写装置
JPS58108745A (ja) * 1981-12-23 1983-06-28 Canon Inc 転写装置
US4563081A (en) * 1982-01-12 1986-01-07 Canon Kabushiki Kaisha Apparatus for controlling image forming condition
US4505581A (en) * 1982-04-28 1985-03-19 Xerox Corporation Registration system for a photocopier
US5369733A (en) * 1982-10-01 1994-11-29 Canon Kabushiki Kaisha Image processing apparatus with apparatus for adjusting a magnification setting
US4530592A (en) * 1983-03-21 1985-07-23 Xerox Corporation Registration mechanism for a multimagnification reproduction apparatus
US4537499A (en) * 1983-03-21 1985-08-27 Xerox Corporation Imaging system for producing reduced or enlarged images of an original document
JPS59214839A (ja) * 1983-05-20 1984-12-04 Fuji Photo Film Co Ltd レンズ自動選択方法
US4884099A (en) * 1988-06-10 1989-11-28 Eastman Kodak Company Automatic adjustment of focal length to obtain desired optical reduction ratio in a microfilm camera
US4866477A (en) * 1988-06-10 1989-09-12 Eastman Kodak Company Automatic lens selection for desired optical reduction ratio in a microfilm camera
US5617000A (en) * 1995-04-13 1997-04-01 Alps Electric Co., Ltd. Apparatus for detecting and controlling the rotational position of a motor shaft

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3076392A (en) * 1959-08-31 1963-02-05 Xerox Corp Xerographic reproducing apparatus
US3476478A (en) * 1967-01-03 1969-11-04 Xerox Corp Apparatus for changing the magnification of a photocopier without changing the conjugate length of the optical system
US3735686A (en) * 1970-12-18 1973-05-29 Sidney R Littlejohn & Co Ltd Camera systems
US3798517A (en) * 1971-12-22 1974-03-19 Rank Organisation Ltd Camera lens control mechanism
GB1433868A (en) * 1972-05-06 1976-04-28 Herbert Ltd A Automatic control systems for and methods of controlling machine tool apparatus
GB1544269A (en) * 1976-03-30 1979-04-19 Xerox Corp Copier
US4097786A (en) * 1976-06-16 1978-06-27 E-Systems, Inc. Limit control apparatus
JPS5930254B2 (ja) * 1978-03-09 1984-07-26 ミノルタ株式会社 複写領域表示装置
JPS54133143A (en) * 1978-04-05 1979-10-16 Minolta Camera Co Ltd Scanning system control device in electrophotographic copier
JPS5552007A (en) * 1978-10-11 1980-04-16 Canon Inc Lens driving device with limitation of movable position

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60184237A (ja) * 1984-03-02 1985-09-19 Asahi Optical Co Ltd 変倍光学装置の制御回路

Also Published As

Publication number Publication date
ES8305136A1 (es) 1983-03-16
EP0051393B1 (en) 1985-05-29
BR8107050A (pt) 1982-07-20
AR240207A1 (es) 1990-02-28
US4316668A (en) 1982-02-23
ES506820A0 (es) 1983-03-16
AU7662881A (en) 1982-05-13
EP0051393B2 (en) 1989-04-05
AU544000B2 (en) 1985-05-16
EP0051393A1 (en) 1982-05-12
DE3170752D1 (en) 1985-07-04
CA1162585A (en) 1984-02-21

Similar Documents

Publication Publication Date Title
GB2092315B (en) Variable magnification copying machine
HK34186A (en) Variable magnification copying machine
GB2074095B (en) Electrophotographic copying machine
JPS5713453A (en) Copying machine
JPS57157259A (en) Copying machine
JPS57114159A (en) Multi-mode-color copying machine
GB2111696B (en) Variable magnification photocopying
JPS5760350A (en) Copying machine
HK35086A (en) Variable magnification document copying machine
GB2128346B (en) Variable magnification photocopying
JPS57109964A (en) Copying machine having variable magnification
JPS5714855A (en) Electrostatic copying machine
GB2101344B (en) Variable magnification photocopying
GB2116331B (en) Variable magnification photocopying
JPS56122054A (en) Copying machine
GB2128367B (en) Photocopying machine
GB2095851B (en) Variable magnification photocopier
DE3065816D1 (en) Copying routing machine
JPS55130553A (en) Original copying machine
JPS57161765A (en) Variable magnification copying machine
JPS57129461A (en) Electrostatic copying machine
GB2104230B (en) Variable magnification photocopier
JPS5734571A (en) Copying machine
GB2066983B (en) Variable magnification photocopier
GB2095415B (en) Copying machine having variable magnification