JPS6435530A - Image forming device - Google Patents
Image forming deviceInfo
- Publication number
- JPS6435530A JPS6435530A JP19186487A JP19186487A JPS6435530A JP S6435530 A JPS6435530 A JP S6435530A JP 19186487 A JP19186487 A JP 19186487A JP 19186487 A JP19186487 A JP 19186487A JP S6435530 A JPS6435530 A JP S6435530A
- Authority
- JP
- Japan
- Prior art keywords
- shutter
- picture element
- imaging
- photosensitive body
- open
- 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.)
- Granted
Links
Landscapes
- Liquid Crystal (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
Abstract
PURPOSE:To form medium contrast photographic paper by exposing the same position of a photosensitive body plural times by a liquid crystal-optical shutter part and varying the aperture time of the liquid crystal-optical shutter apart with each row. CONSTITUTION:The windows of picture elements A-D on the shutter 31 are imaged on the imaging places A'-D' of the photosensitive body 32 by a lens array 33 for unmagnification inversion. Scanning is then repeated to form another images on the shutter and the photosensitive is moved by one line simultaneously therewith. The shutter windows of the picture elements B-D are imaged in the positions of the imaging places A'-C' respectively on the photosensitive body and while the imaging place D' comes to the outside of the imaging range, the imaging place Z' is newly brought to the position where the transmitted light from the shutter window of the picture element A is received. One point on the photosensitive body receives the transmitted light in order of the picture elements A B C D by repeating this operation. The entire exposing process is ended by 4 times of the scanning periods. Namely, the signal of open is applied by the picture element A, close by the picture element B, open by the picture element C, and open by the picture element D in the case of executing exposing of, for example, 11/15 gradation degree.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62191864A JP2502317B2 (en) | 1987-07-31 | 1987-07-31 | Image forming device |
EP88110800A EP0298460B1 (en) | 1987-07-07 | 1988-07-06 | Image forming apparatus |
DE88110800T DE3884479T2 (en) | 1987-07-07 | 1988-07-06 | Imaging device. |
US07/215,791 US4958912A (en) | 1987-07-07 | 1988-07-06 | Image forming apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62191864A JP2502317B2 (en) | 1987-07-31 | 1987-07-31 | Image forming device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6435530A true JPS6435530A (en) | 1989-02-06 |
JP2502317B2 JP2502317B2 (en) | 1996-05-29 |
Family
ID=16281761
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62191864A Expired - Fee Related JP2502317B2 (en) | 1987-07-07 | 1987-07-31 | Image forming device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2502317B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007030234A (en) * | 2005-07-25 | 2007-02-08 | Seiko Epson Corp | Light exposing method, light emitting apparatus and image forming apparatus |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60153028A (en) * | 1984-01-23 | 1985-08-12 | Canon Inc | Image reproducing device |
JPS61103122A (en) * | 1984-10-27 | 1986-05-21 | Konishiroku Photo Ind Co Ltd | Image printer |
JPS61116325A (en) * | 1984-11-12 | 1986-06-03 | Canon Inc | Picture formation device |
-
1987
- 1987-07-31 JP JP62191864A patent/JP2502317B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60153028A (en) * | 1984-01-23 | 1985-08-12 | Canon Inc | Image reproducing device |
JPS61103122A (en) * | 1984-10-27 | 1986-05-21 | Konishiroku Photo Ind Co Ltd | Image printer |
JPS61116325A (en) * | 1984-11-12 | 1986-06-03 | Canon Inc | Picture formation device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007030234A (en) * | 2005-07-25 | 2007-02-08 | Seiko Epson Corp | Light exposing method, light emitting apparatus and image forming apparatus |
Also Published As
Publication number | Publication date |
---|---|
JP2502317B2 (en) | 1996-05-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |