JPS6479781A - Cleaning shutter device for electrophotographic device - Google Patents
Cleaning shutter device for electrophotographic deviceInfo
- Publication number
- JPS6479781A JPS6479781A JP23608987A JP23608987A JPS6479781A JP S6479781 A JPS6479781 A JP S6479781A JP 23608987 A JP23608987 A JP 23608987A JP 23608987 A JP23608987 A JP 23608987A JP S6479781 A JPS6479781 A JP S6479781A
- Authority
- JP
- Japan
- Prior art keywords
- lens
- cleaning
- shutter
- light output
- output surface
- 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
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
- G03G15/04036—Details of illuminating systems, e.g. lamps, reflectors
- G03G15/04045—Details of illuminating systems, e.g. lamps, reflectors for exposing image information provided otherwise than by directly projecting the original image onto the photoconductive recording material, e.g. digital copiers
- G03G15/04072—Details of illuminating systems, e.g. lamps, reflectors for exposing image information provided otherwise than by directly projecting the original image onto the photoconductive recording material, e.g. digital copiers by laser
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
- G03G15/043—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for controlling illumination or exposure
- G03G15/0435—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for controlling illumination or exposure by introducing an optical element in the optical path, e.g. a filter
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Cleaning In Electrography (AREA)
Abstract
PURPOSE:To clean the surface of a lens so as to prevent the adhesion of toner, etc., and to eliminate the need for operations for cleaning and exchanging the lens by installing a cleaning member on a shutter which opens the light output surface of a scanning optical system only at the time of producing an image. CONSTITUTION:The laser light beam of a laser optical system 1 is reflected by a reflecting mirror 2 and radiated on a photosensitive body 4 through the lens 3. The shutter 5 and the cleaning pad 51, whose end parts are supported by supporting members 6, are arranged on the light output surface 31 and they are usually blocked by a spring 7. When a current is applied to a solenoid 8 at the time of producing the image, the shutter 5 and the pad 51 are moved in a direction shown by an arrow A and opens the light output surface 31 simultaneously with cleaning the lens 3. Thus, the adhesion of the toner and dust, etc., to the surface of the lens can be prevented to the utmost and troublesome operations for cleaning and exchanging the lens can be eliminated.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23608987A JPS6479781A (en) | 1987-09-22 | 1987-09-22 | Cleaning shutter device for electrophotographic device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23608987A JPS6479781A (en) | 1987-09-22 | 1987-09-22 | Cleaning shutter device for electrophotographic device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6479781A true JPS6479781A (en) | 1989-03-24 |
Family
ID=16995558
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23608987A Pending JPS6479781A (en) | 1987-09-22 | 1987-09-22 | Cleaning shutter device for electrophotographic device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6479781A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0360352U (en) * | 1989-10-17 | 1991-06-13 | ||
US7203444B2 (en) | 2003-03-28 | 2007-04-10 | Ricoh Company Ltd. | Method and apparatus for image forming and optical writing device installed therein capable of reducing adhering dust |
US20100310269A1 (en) * | 2009-06-03 | 2010-12-09 | Kabushiki Kaisha Toshiba | Image forming apparatus |
JP2012242760A (en) * | 2011-05-23 | 2012-12-10 | Ricoh Co Ltd | Optical scanner and image forming apparatus |
-
1987
- 1987-09-22 JP JP23608987A patent/JPS6479781A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0360352U (en) * | 1989-10-17 | 1991-06-13 | ||
US7203444B2 (en) | 2003-03-28 | 2007-04-10 | Ricoh Company Ltd. | Method and apparatus for image forming and optical writing device installed therein capable of reducing adhering dust |
US20100310269A1 (en) * | 2009-06-03 | 2010-12-09 | Kabushiki Kaisha Toshiba | Image forming apparatus |
JP2012242760A (en) * | 2011-05-23 | 2012-12-10 | Ricoh Co Ltd | Optical scanner and image forming apparatus |
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