JPS5470840A - Scanning exposure device for copying apparatus - Google Patents

Scanning exposure device for copying apparatus

Info

Publication number
JPS5470840A
JPS5470840A JP13736977A JP13736977A JPS5470840A JP S5470840 A JPS5470840 A JP S5470840A JP 13736977 A JP13736977 A JP 13736977A JP 13736977 A JP13736977 A JP 13736977A JP S5470840 A JPS5470840 A JP S5470840A
Authority
JP
Japan
Prior art keywords
original
during
backward
photosensitive element
scanning operation
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
JP13736977A
Other languages
Japanese (ja)
Inventor
Ryuzo Suzuki
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP13736977A priority Critical patent/JPS5470840A/en
Publication of JPS5470840A publication Critical patent/JPS5470840A/en
Pending legal-status Critical Current

Links

Landscapes

  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Optical Systems Of Projection Type Copiers (AREA)

Abstract

PURPOSE: To focus an erect image on the surface of a photosensitive element even the forward and backward scanning operations of an original thereby to increase the copying speed by moving the photosensitive element in the forward direction, when the original is scanned in a first direction, and by moving the same in the backward direction when the original is second direction.
CONSTITUTION: During the forward scanning operation, a plane mirror 1 is moved from position 1 to position 1a along the surface of an original 0 but vice veras during the backward scanning operation. A plane mirror 2 is so movable at a half speed of the moving speed of the mirror 1 that itis moved from position 2 to position 2a during the forward scanning operation and vice versa during the backward scanning operation thereby to make it possible to scan the original 0 during both the forward and bqckward scanning operations. The scanned image of the original 0 is focused upon the surface of a photosensive element 9 through an in-mirror lens 3 and a plane mirror 4. The photosensitive element 9 is made rotatable back and forth in a manner to respectively correspond to the backward and forward scanning directions so that the erect image of the original can be focused upon the surface of the photosensitive element 9 during both the forward and backward scanning operations.
COPYRIGHT: (C)1979,JPO&Japio
JP13736977A 1977-11-16 1977-11-16 Scanning exposure device for copying apparatus Pending JPS5470840A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13736977A JPS5470840A (en) 1977-11-16 1977-11-16 Scanning exposure device for copying apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13736977A JPS5470840A (en) 1977-11-16 1977-11-16 Scanning exposure device for copying apparatus

Publications (1)

Publication Number Publication Date
JPS5470840A true JPS5470840A (en) 1979-06-07

Family

ID=15197062

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13736977A Pending JPS5470840A (en) 1977-11-16 1977-11-16 Scanning exposure device for copying apparatus

Country Status (1)

Country Link
JP (1) JPS5470840A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56106258A (en) * 1980-01-26 1981-08-24 Ricoh Co Ltd Reciprocating exposure type electrophotographic copier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56106258A (en) * 1980-01-26 1981-08-24 Ricoh Co Ltd Reciprocating exposure type electrophotographic copier

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