JPS5498251A - Scanning exposure device for copier - Google Patents

Scanning exposure device for copier

Info

Publication number
JPS5498251A
JPS5498251A JP552778A JP552778A JPS5498251A JP S5498251 A JPS5498251 A JP S5498251A JP 552778 A JP552778 A JP 552778A JP 552778 A JP552778 A JP 552778A JP S5498251 A JPS5498251 A JP S5498251A
Authority
JP
Japan
Prior art keywords
mirror
reflected
plane mirror
photoreceptor
original
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
JP552778A
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 JP552778A priority Critical patent/JPS5498251A/en
Publication of JPS5498251A publication Critical patent/JPS5498251A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To enhance copying efficiency without complicating a device, by providing 2 scanners to expose a photoreceptor even during movement of movable parts of an optical system.
CONSTITUTION: First plane mirror 1 is translated from the position of a full line to position 1a of an alternate along and short dash line in parallel to original 0 to forward scan the original surface. Second plane mirror 2 follows mirror 1 at a speed of 1/2 of that of mirror 1, moving from the position of a full line to position 2a of an alternate long and short dash line. The light flux reflected from the original surface is reflected by mirrors 1 and 2, falls on mirror lens 3, further reflected by plane mirror 4, and forms the image on circumferential surface 40 of photoreceptor 9. In backward scanning, the light flux reflected from the original surface is reflected by third plane mirror 11 combined with mirror 1 in a roof shape, reflected by fourth plane mirror 22 moving at a moving speed of 1/2 of that of mirror 11, falls on lens 3, further reflected by surface 44 and 55 of prism 45, again by plane mirror 66, and finally forms the image on circumferential surface 660 of photoreceptor 9.
COPYRIGHT: (C)1979,JPO&Japio
JP552778A 1978-01-20 1978-01-20 Scanning exposure device for copier Pending JPS5498251A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP552778A JPS5498251A (en) 1978-01-20 1978-01-20 Scanning exposure device for copier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP552778A JPS5498251A (en) 1978-01-20 1978-01-20 Scanning exposure device for copier

Publications (1)

Publication Number Publication Date
JPS5498251A true JPS5498251A (en) 1979-08-03

Family

ID=11613654

Family Applications (1)

Application Number Title Priority Date Filing Date
JP552778A Pending JPS5498251A (en) 1978-01-20 1978-01-20 Scanning exposure device for copier

Country Status (1)

Country Link
JP (1) JPS5498251A (en)

Similar Documents

Publication Publication Date Title
JPS5489737A (en) Copying machine
JPS5498251A (en) Scanning exposure device for copier
JPS5498250A (en) Scanning exposure device for copier
JPS5748754A (en) Copying device
JPS54138449A (en) Original fixing type copying machine
JPS564116A (en) Optical device
JPS5470840A (en) Scanning exposure device for copying apparatus
JPS5462817A (en) Scanning exposure apparatus in coyping machine
JPS5512933A (en) Electrophotographic printing machine
JPS5470047A (en) Scanning exposure device for copier
JPS55126258A (en) Optical device of copying machine
JPS56126877A (en) Copying machine
JPS5567764A (en) Exposure device
JPS54116920A (en) Lens for copier
JPS5462818A (en) Scanning exposure apparatus in copying machine
JPS55126263A (en) Variable magnification optical device
JPS5590974A (en) Exposure device of electrophotographic copier
JPS557751A (en) Reader-printer
JPS5657061A (en) Composite office machine
JPS55135869A (en) Optical device of copying machnine or the like
JPS5470842A (en) Scanning exposure device for copying apparatus
JPS5521023A (en) Oscillating mirror lighting system
JPS5567762A (en) Exposure device
JPS5494323A (en) Optical device for copying machine
JPS55137550A (en) Optical scanner