JPS56106256A - Exposure device of electrophotographic copier - Google Patents
Exposure device of electrophotographic copierInfo
- Publication number
- JPS56106256A JPS56106256A JP893280A JP893280A JPS56106256A JP S56106256 A JPS56106256 A JP S56106256A JP 893280 A JP893280 A JP 893280A JP 893280 A JP893280 A JP 893280A JP S56106256 A JPS56106256 A JP S56106256A
- Authority
- JP
- Japan
- Prior art keywords
- light source
- reflector
- original
- plate
- exposure device
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
Abstract
PURPOSE:To simplify a control circuit and to make a halogen lamp unnecessary, by providig a mobile part for controllig light quantity from a light source at least on one part of a reflective plate provided in the light source, and enabling the light quantity from the light source to be optionally adjusted. CONSTITUTION:Light source 20 having reflective plate 19 is provided in exposure device 18 of a copier, and scans original 15 moving together with original platen 14. Plate 19 consists of fixed refector 24 and mobile reflector 29, and one side of reflector 29 is fixed to drive shaft 31 having a dial 30. The openig angle of plate 19 can be changed by rotating dial 30 and turning reflector 29 in the direction of arrows (a) or (b), thus permitting illumination quantity to be controlled in accordance with density of original 15.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP893280A JPS56106256A (en) | 1980-01-29 | 1980-01-29 | Exposure device of electrophotographic copier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP893280A JPS56106256A (en) | 1980-01-29 | 1980-01-29 | Exposure device of electrophotographic copier |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56106256A true JPS56106256A (en) | 1981-08-24 |
Family
ID=11706430
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP893280A Pending JPS56106256A (en) | 1980-01-29 | 1980-01-29 | Exposure device of electrophotographic copier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56106256A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62188756U (en) * | 1986-05-20 | 1987-12-01 |
-
1980
- 1980-01-29 JP JP893280A patent/JPS56106256A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62188756U (en) * | 1986-05-20 | 1987-12-01 |
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