JPS5470839A - Scanning exposure device for copying apparatus - Google Patents

Scanning exposure device for copying apparatus

Info

Publication number
JPS5470839A
JPS5470839A JP13736877A JP13736877A JPS5470839A JP S5470839 A JPS5470839 A JP S5470839A JP 13736877 A JP13736877 A JP 13736877A JP 13736877 A JP13736877 A JP 13736877A JP S5470839 A JPS5470839 A JP S5470839A
Authority
JP
Japan
Prior art keywords
mirror
scanning means
plane mirror
scanning
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
JP13736877A
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 JP13736877A priority Critical patent/JPS5470839A/en
Publication of JPS5470839A publication Critical patent/JPS5470839A/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 increase the copying speed and to improve the efficiency by making it possible to expose a photosensitive material even when a moving part during an original scanning operation is returned.
CONSTITUTION: A second plane mirror 2 is moved following the movement of a first plane mirror 1 along the surface of an original 0 at a half speed of the first mirror 1 thereby to constitute first scanning means for the returning stroke, as shown arrow A. A third plane mirror 11 has an opposite inclination to that of the first mirror 1 and is made integral therewith. When the third mirror moves during its return stroke, as shown at arrow B, together with a fourth plane mirror 22, this mirror 22 moves at a half speed of the mirror 11 thereby to constitute second scanning means for the returning stroke. An exposure shutter is arranged above the mirrors 1 and 11 and is made movable together with therewith but shield the second scanning means at start of the forward scanning operation and the first scanning means at te start of the backward scanning operation so that a photosensitive element 6 can be exposed almost continuously.
COPYRIGHT: (C)1979,JPO&Japio
JP13736877A 1977-11-16 1977-11-16 Scanning exposure device for copying apparatus Pending JPS5470839A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13736877A JPS5470839A (en) 1977-11-16 1977-11-16 Scanning exposure device for copying apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13736877A JPS5470839A (en) 1977-11-16 1977-11-16 Scanning exposure device for copying apparatus

Publications (1)

Publication Number Publication Date
JPS5470839A true JPS5470839A (en) 1979-06-07

Family

ID=15197041

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13736877A Pending JPS5470839A (en) 1977-11-16 1977-11-16 Scanning exposure device for copying apparatus

Country Status (1)

Country Link
JP (1) JPS5470839A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5678854A (en) * 1979-11-30 1981-06-29 Ricoh Co Ltd Copying method for reciprocative scanning of original

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5678854A (en) * 1979-11-30 1981-06-29 Ricoh Co Ltd Copying method for reciprocative scanning of original

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