JPS6448074A - Image forming device - Google Patents
Image forming deviceInfo
- 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
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.
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)
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)
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 |
-
1987
- 1987-08-18 JP JP62204861A patent/JPS6448074A/en active Pending
Patent Citations (2)
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)
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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