JPH05707B2 - - Google Patents

Info

Publication number
JPH05707B2
JPH05707B2 JP58076493A JP7649383A JPH05707B2 JP H05707 B2 JPH05707 B2 JP H05707B2 JP 58076493 A JP58076493 A JP 58076493A JP 7649383 A JP7649383 A JP 7649383A JP H05707 B2 JPH05707 B2 JP H05707B2
Authority
JP
Japan
Prior art keywords
exposure
imaging lens
light source
blackening
light
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
JP58076493A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59201037A (ja
Inventor
Yukio Takemura
Hideaki Yano
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
Priority to JP7649383A priority Critical patent/JPS59201037A/ja
Publication of JPS59201037A publication Critical patent/JPS59201037A/ja
Publication of JPH05707B2 publication Critical patent/JPH05707B2/ja
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
    • G03G15/045—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 means for charging or discharging distinct portions of the charge pattern on the recording material, e.g. for contrast enhancement or discharging non-image areas
    • G03G15/047—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 means for charging or discharging distinct portions of the charge pattern on the recording material, e.g. for contrast enhancement or discharging non-image areas for discharging non-image areas

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Variable Magnification In Projection-Type Copying Machines (AREA)
JP7649383A 1983-04-30 1983-04-30 可変倍複写装置 Granted JPS59201037A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7649383A JPS59201037A (ja) 1983-04-30 1983-04-30 可変倍複写装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7649383A JPS59201037A (ja) 1983-04-30 1983-04-30 可変倍複写装置

Publications (2)

Publication Number Publication Date
JPS59201037A JPS59201037A (ja) 1984-11-14
JPH05707B2 true JPH05707B2 (US07179912-20070220-C00144.png) 1993-01-06

Family

ID=13606742

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7649383A Granted JPS59201037A (ja) 1983-04-30 1983-04-30 可変倍複写装置

Country Status (1)

Country Link
JP (1) JPS59201037A (US07179912-20070220-C00144.png)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6247666A (ja) * 1985-08-28 1987-03-02 Canon Inc 電子写真複写機の白枠形成装置
JPH0731248Y2 (ja) * 1987-02-23 1995-07-19 キヤノン株式会社 画像形成装置
DE19939240C2 (de) * 1999-08-18 2002-09-26 Roland Man Druckmasch Verfahren und Vorrichtung zum reversiblen Bebildern einer Druckform

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49123042A (US07179912-20070220-C00144.png) * 1973-03-27 1974-11-25

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49123042A (US07179912-20070220-C00144.png) * 1973-03-27 1974-11-25

Also Published As

Publication number Publication date
JPS59201037A (ja) 1984-11-14

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