JPS6448074A - Image forming device - Google Patents

Image forming device

Info

Publication number
JPS6448074A
JPS6448074A JP62204861A JP20486187A JPS6448074A JP S6448074 A JPS6448074 A JP S6448074A JP 62204861 A JP62204861 A JP 62204861A JP 20486187 A JP20486187 A JP 20486187A JP S6448074 A JPS6448074 A JP S6448074A
Authority
JP
Japan
Prior art keywords
mark
reading
positioning
area
reader
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
JP62204861A
Other languages
Japanese (ja)
Inventor
Kunihiko Matsuzawa
Yasushi Murayama
Yoshihiko Hirose
Tomohiro Aoki
Kazuyoshi Chiku
Kazunori Kanekura
Setsu Uchida
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP62204861A priority Critical patent/JPS6448074A/en
Publication of JPS6448074A publication Critical patent/JPS6448074A/en
Pending legal-status Critical Current

Links

Landscapes

  • Color Electrophotography (AREA)
  • Controlling Sheets Or Webs (AREA)

Abstract

PURPOSE:To precisely detect the position of a mark by reading the mark in the contact area of a contacting member or near the said member which is installed so as to be in contact with a moving member. CONSTITUTION:Two mark readers for positioning sheets are installed on left and right sides. Now, the reader 24R on the right side is mentioned. The reader 24R is constituted of a lens 31, an infrared area transmissive filter 32 and a CCD line sensor 33 and when the mark for positioning which is transferred on a conveying belt 17 from a photosensitive drum is conveyed and reaches a mark reading area, an illumination lamp 30 installed above the conveying device emits light with the actuation of a sheet positioning mark detection means (not illustrated in a figure) to irradiate the mark. The scattered light from the mark is condensed by the lens 31 to focus on the CCD line sensor 33 through the infrared area transmissive filter 32. By executing the reading of the mark near a belt driving roller 20, the reading of the mark can be precisely executed.
JP62204861A 1987-08-18 1987-08-18 Image forming device Pending JPS6448074A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62204861A JPS6448074A (en) 1987-08-18 1987-08-18 Image forming device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62204861A JPS6448074A (en) 1987-08-18 1987-08-18 Image forming device

Publications (1)

Publication Number Publication Date
JPS6448074A true JPS6448074A (en) 1989-02-22

Family

ID=16497610

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62204861A Pending JPS6448074A (en) 1987-08-18 1987-08-18 Image forming device

Country Status (1)

Country Link
JP (1) JPS6448074A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5272613A (en) * 1991-03-13 1993-12-21 U.S. Philips Corporation Cascaded rectifier and two switched voltage converter circuits with harmonics suppression
JP2002369319A (en) * 2001-06-05 2002-12-20 Mitsubishi Electric Corp Storage box of switchgear
US6683590B1 (en) 1998-03-20 2004-01-27 The University Of Hong Kong Tricolor LED display system having audio output

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63280277A (en) * 1987-05-13 1988-11-17 Ricoh Co Ltd Image forming device
JPS63286864A (en) * 1987-05-19 1988-11-24 Ricoh Co Ltd Image forming device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63280277A (en) * 1987-05-13 1988-11-17 Ricoh Co Ltd Image forming device
JPS63286864A (en) * 1987-05-19 1988-11-24 Ricoh Co Ltd Image forming device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5272613A (en) * 1991-03-13 1993-12-21 U.S. Philips Corporation Cascaded rectifier and two switched voltage converter circuits with harmonics suppression
US6683590B1 (en) 1998-03-20 2004-01-27 The University Of Hong Kong Tricolor LED display system having audio output
JP2002369319A (en) * 2001-06-05 2002-12-20 Mitsubishi Electric Corp Storage box of switchgear

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