JPS5660462A - Exposure light quantity adjusting device of slit exposure type variable magnification copying machine - Google Patents

Exposure light quantity adjusting device of slit exposure type variable magnification copying machine

Info

Publication number
JPS5660462A
JPS5660462A JP13683979A JP13683979A JPS5660462A JP S5660462 A JPS5660462 A JP S5660462A JP 13683979 A JP13683979 A JP 13683979A JP 13683979 A JP13683979 A JP 13683979A JP S5660462 A JPS5660462 A JP S5660462A
Authority
JP
Japan
Prior art keywords
photosensitive material
discharging equipment
corona discharging
part potential
light quantity
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
JP13683979A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0219954B2 (pm
Inventor
Hiroshi Ogawa
Shigehiro Komori
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 JP13683979A priority Critical patent/JPS5660462A/ja
Priority to US06/141,922 priority patent/US4411514A/en
Priority to DE19803015820 priority patent/DE3015820A1/de
Publication of JPS5660462A publication Critical patent/JPS5660462A/ja
Publication of JPH0219954B2 publication Critical patent/JPH0219954B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Variable Magnification In Projection-Type Copying Machines (AREA)
  • Control Or Security For Electrophotography (AREA)
JP13683979A 1979-04-24 1979-10-23 Exposure light quantity adjusting device of slit exposure type variable magnification copying machine Granted JPS5660462A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP13683979A JPS5660462A (en) 1979-10-23 1979-10-23 Exposure light quantity adjusting device of slit exposure type variable magnification copying machine
US06/141,922 US4411514A (en) 1979-04-24 1980-04-21 Variable magnification electrophotographic copying apparatus
DE19803015820 DE3015820A1 (de) 1979-04-24 1980-04-24 Elektrophotographisches kopiergeraet mit veraenderbarer vergroesserung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13683979A JPS5660462A (en) 1979-10-23 1979-10-23 Exposure light quantity adjusting device of slit exposure type variable magnification copying machine

Publications (2)

Publication Number Publication Date
JPS5660462A true JPS5660462A (en) 1981-05-25
JPH0219954B2 JPH0219954B2 (pm) 1990-05-07

Family

ID=15184701

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13683979A Granted JPS5660462A (en) 1979-04-24 1979-10-23 Exposure light quantity adjusting device of slit exposure type variable magnification copying machine

Country Status (1)

Country Link
JP (1) JPS5660462A (pm)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58160967A (ja) * 1982-03-19 1983-09-24 Matsushita Electric Ind Co Ltd 変倍複写機

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4898842A (pm) * 1972-03-29 1973-12-14
JPS5010124A (pm) * 1973-05-24 1975-02-01

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4898842A (pm) * 1972-03-29 1973-12-14
JPS5010124A (pm) * 1973-05-24 1975-02-01

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58160967A (ja) * 1982-03-19 1983-09-24 Matsushita Electric Ind Co Ltd 変倍複写機

Also Published As

Publication number Publication date
JPH0219954B2 (pm) 1990-05-07

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