JPS643618A - Laser color printer - Google Patents

Laser color printer

Info

Publication number
JPS643618A
JPS643618A JP62157875A JP15787587A JPS643618A JP S643618 A JPS643618 A JP S643618A JP 62157875 A JP62157875 A JP 62157875A JP 15787587 A JP15787587 A JP 15787587A JP S643618 A JPS643618 A JP S643618A
Authority
JP
Japan
Prior art keywords
laser
constitution
deflecting system
beams
mirror
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
JP62157875A
Other languages
Japanese (ja)
Inventor
Takashi Mama
Naonobu Fujioka
Kenichiro Asada
Yoshio Kaneko
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 JP62157875A priority Critical patent/JPS643618A/en
Publication of JPS643618A publication Critical patent/JPS643618A/en
Pending legal-status Critical Current

Links

Landscapes

  • Laser Beam Printer (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Color Electrophotography (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Color, Gradation (AREA)

Abstract

PURPOSE:To miniaturize a deflecting system by obtaining such a constitution that two laser beams are led to the deflecting system through mirrors or prisms. CONSTITUTION:A laser unit 2M is arranged closer to a sheet a distance L' than a laser unit 2C is. Here, the height of the mirror 10C as an optical deflecting member is a distance from the sheet in the vertical direction, and the height is set, so that the mirror 10C reflects the laser beam 3C and blocks no laser beam 3M. Thanks to this constitution, the interval L between beams satisfies L'<L, whereby the width H of the polygonal mirror R as a deflecting system can be minimized. Thus the interval between a pair of two beams can be minimized to scale down the deflecting system 4. Its irregularity of rotation and surface blurring can be reduced to obtain the high performance laser color printer.
JP62157875A 1987-06-26 1987-06-26 Laser color printer Pending JPS643618A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62157875A JPS643618A (en) 1987-06-26 1987-06-26 Laser color printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62157875A JPS643618A (en) 1987-06-26 1987-06-26 Laser color printer

Publications (1)

Publication Number Publication Date
JPS643618A true JPS643618A (en) 1989-01-09

Family

ID=15659319

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62157875A Pending JPS643618A (en) 1987-06-26 1987-06-26 Laser color printer

Country Status (1)

Country Link
JP (1) JPS643618A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0353213A (en) * 1989-07-20 1991-03-07 Canon Inc Optical scanner
JPH04260041A (en) * 1991-02-15 1992-09-16 Fujitsu Ltd Exposure device
US6683708B2 (en) 1996-01-11 2004-01-27 Kabushiki Kaisha Toshiba Multi-beam exposure unit
JP2006018011A (en) * 2004-07-01 2006-01-19 Ricoh Co Ltd Optical scanner and image forming apparatus equipped therewith
JP2006284822A (en) * 2005-03-31 2006-10-19 Ricoh Co Ltd Optical scanner and image forming apparatus
JP2007286631A (en) * 2007-05-28 2007-11-01 Ricoh Co Ltd Optical scanner and image-forming apparatus using same
WO2007129771A1 (en) * 2006-05-09 2007-11-15 Canon Kabushiki Kaisha Optical scanning device
US7446917B2 (en) 2006-01-05 2008-11-04 Canon Kabushiki Kaisha Optical scanning apparatus
JP2014153407A (en) * 2013-02-05 2014-08-25 Sharp Corp Optical scanner and image forming apparatus including the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60188920A (en) * 1984-03-09 1985-09-26 Comput Basic Mach Technol Res Assoc Scanning optical device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60188920A (en) * 1984-03-09 1985-09-26 Comput Basic Mach Technol Res Assoc Scanning optical device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0353213A (en) * 1989-07-20 1991-03-07 Canon Inc Optical scanner
JPH04260041A (en) * 1991-02-15 1992-09-16 Fujitsu Ltd Exposure device
US6683708B2 (en) 1996-01-11 2004-01-27 Kabushiki Kaisha Toshiba Multi-beam exposure unit
JP2006018011A (en) * 2004-07-01 2006-01-19 Ricoh Co Ltd Optical scanner and image forming apparatus equipped therewith
JP2006284822A (en) * 2005-03-31 2006-10-19 Ricoh Co Ltd Optical scanner and image forming apparatus
US7446917B2 (en) 2006-01-05 2008-11-04 Canon Kabushiki Kaisha Optical scanning apparatus
WO2007129771A1 (en) * 2006-05-09 2007-11-15 Canon Kabushiki Kaisha Optical scanning device
JP2007286631A (en) * 2007-05-28 2007-11-01 Ricoh Co Ltd Optical scanner and image-forming apparatus using same
JP2014153407A (en) * 2013-02-05 2014-08-25 Sharp Corp Optical scanner and image forming apparatus including the same

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