JPS6480925A - Optical device for laser beam printer - Google Patents

Optical device for laser beam printer

Info

Publication number
JPS6480925A
JPS6480925A JP23943887A JP23943887A JPS6480925A JP S6480925 A JPS6480925 A JP S6480925A JP 23943887 A JP23943887 A JP 23943887A JP 23943887 A JP23943887 A JP 23943887A JP S6480925 A JPS6480925 A JP S6480925A
Authority
JP
Japan
Prior art keywords
reflecting surface
laser beam
scanning beam
photosensitive drum
strikes
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
JP23943887A
Other languages
Japanese (ja)
Inventor
Mitsuhiro Togashi
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.)
Alps Alpine Co Ltd
Original Assignee
Alps Electric 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 Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Priority to JP23943887A priority Critical patent/JPS6480925A/en
Publication of JPS6480925A publication Critical patent/JPS6480925A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To scan a scanning beam without using a rotary polygon mirror nor an ftheta lens by providing a reflecting surface consisting of successive surfaces which reflect the scanning beam toward the surface of a photosensitive drum when reaching the position where the scanning beam strikes. CONSTITUTION:The reflecting surface 15 is provided which is driven to rotate and formed spirally having its center on the its rotary shaft 15a. The reflecting surface 15b consists of the successive surfaces which reflect the scanning beam toward the surface of the photosensitive drum 16 when reaching the position where the scanning beam emitted by a light emitting member 14 strikes. When the spiral reflecting surface 15b rotates, the reflection position where the laser beam strikes moves in the direction of the rotary shaft 15b of the reflecting surface and the laser beam reflected by the reflecting surface 15b scans on the surface of the photosensitive drum 16 in the drum shaft direction. Consequently, the laser beam can be scanned without using any rotary polygon mirror nor any high-accuracy, expensive ftheta lens.
JP23943887A 1987-09-22 1987-09-22 Optical device for laser beam printer Pending JPS6480925A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23943887A JPS6480925A (en) 1987-09-22 1987-09-22 Optical device for laser beam printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23943887A JPS6480925A (en) 1987-09-22 1987-09-22 Optical device for laser beam printer

Publications (1)

Publication Number Publication Date
JPS6480925A true JPS6480925A (en) 1989-03-27

Family

ID=17044772

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23943887A Pending JPS6480925A (en) 1987-09-22 1987-09-22 Optical device for laser beam printer

Country Status (1)

Country Link
JP (1) JPS6480925A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0995006A (en) * 1994-03-04 1997-04-08 Ruhlatec Ind Gmbh Method and apparatus for regenerating data
KR20010100164A (en) * 2001-10-20 2001-11-14 서재현 Radial Optical Scanner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0995006A (en) * 1994-03-04 1997-04-08 Ruhlatec Ind Gmbh Method and apparatus for regenerating data
KR20010100164A (en) * 2001-10-20 2001-11-14 서재현 Radial Optical Scanner

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