JPS5498250A - Scanning exposure device for copier - Google Patents

Scanning exposure device for copier

Info

Publication number
JPS5498250A
JPS5498250A JP552678A JP552678A JPS5498250A JP S5498250 A JPS5498250 A JP S5498250A JP 552678 A JP552678 A JP 552678A JP 552678 A JP552678 A JP 552678A JP S5498250 A JPS5498250 A JP S5498250A
Authority
JP
Japan
Prior art keywords
mirror
reflected
original
plane
photoreceptor
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
JP552678A
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 JP552678A priority Critical patent/JPS5498250A/en
Publication of JPS5498250A publication Critical patent/JPS5498250A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To enhance copying efficiency without complicating a device by providing 2 scanners and by enabling exposure of a photoreceptor even during movement of movable parts of optical systems.
CONSTITUTION: First plane mirror 1 is movalby arranged along the surface of original 0, and in forward scanning the original surface is scanned by moving from the position of a full line to position 1a an alternate long the short dash line. Second plane mirror 2 follows mirror 1 at a moving speed of 1/2 of that of mirror 1 when mirror 1 moves, and mirror 2 moves from the position of a full line to position 2a of an alternate long and short dash line. A light flux reflected from original 0 is reflected by mirrors 1 and 2, falls on through lens 3, further reflected by plane mirrors 4 and 5, and forms the image on surface 50 of photoreceptor 9. In backward scanning, the light flux reflected from original 0 is reflected by third plane mirror 11 combined with mirror 1 in a roof shape, further reflected fourth plane mirror 22 moving at a speed of that of mirror 11, falls on through lens 3, reflected by reflective faces 44 and 55 of prism 45, further reflected by plane mirrors 66 and 77, and forms the image on circumferential surface 770 of photoreceptor 9.
COPYRIGHT: (C)1979,JPO&Japio
JP552678A 1978-01-20 1978-01-20 Scanning exposure device for copier Pending JPS5498250A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP552678A JPS5498250A (en) 1978-01-20 1978-01-20 Scanning exposure device for copier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP552678A JPS5498250A (en) 1978-01-20 1978-01-20 Scanning exposure device for copier

Publications (1)

Publication Number Publication Date
JPS5498250A true JPS5498250A (en) 1979-08-03

Family

ID=11613625

Family Applications (1)

Application Number Title Priority Date Filing Date
JP552678A Pending JPS5498250A (en) 1978-01-20 1978-01-20 Scanning exposure device for copier

Country Status (1)

Country Link
JP (1) JPS5498250A (en)

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