JPS55111967A - Light radiation method to electrophotographic photoreceptor - Google Patents
Light radiation method to electrophotographic photoreceptorInfo
- Publication number
- JPS55111967A JPS55111967A JP1938279A JP1938279A JPS55111967A JP S55111967 A JPS55111967 A JP S55111967A JP 1938279 A JP1938279 A JP 1938279A JP 1938279 A JP1938279 A JP 1938279A JP S55111967 A JPS55111967 A JP S55111967A
- Authority
- JP
- Japan
- Prior art keywords
- light
- light source
- photosensitive drum
- filter
- transmits
- 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
Abstract
PURPOSE:To achieve the simplification of the device while preventing the fatigue phenomenon of the photoreceptor by obtaining both light sources for exposure and charged charge erasing by the use of filters from the same light source. CONSTITUTION:A reflector 4 mounted with a red color filter 5 of cylindrical form and a filter 6 which transmits light of wavelengths shorter than 650mm is disposed concentrically to a light source 3 consisting of a halogen lamp or fluorescent lamp. As a result of this, at the time when the photosensitive drum 1 passes a charging electrode 2 after the light of the light source 3 transmits through the filter 5 and is radiated onto the photosensitive drum 1 rotating in the arrow A direction to perfectly erase the charged charges on the photosensitive drum 1 and clean the photosensitive drum 1, electrostatic charges are given on its surface, after which the light images of the original platen 7 radiated through the filter 6 by the light from the light source 3 are formed through a Selfoc 8, whereby the electrostatic latent images are formed. Since the wavelengths of the light source for charged charge erasing and exposure vary, the fatigue phenomenon of the photoreceptor becomes difficult to occur.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1938279A JPS55111967A (en) | 1979-02-21 | 1979-02-21 | Light radiation method to electrophotographic photoreceptor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1938279A JPS55111967A (en) | 1979-02-21 | 1979-02-21 | Light radiation method to electrophotographic photoreceptor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55111967A true JPS55111967A (en) | 1980-08-29 |
Family
ID=11997750
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1938279A Pending JPS55111967A (en) | 1979-02-21 | 1979-02-21 | Light radiation method to electrophotographic photoreceptor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55111967A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6151187A (en) * | 1984-08-21 | 1986-03-13 | Canon Inc | Electrophotographic device |
DE4237236A1 (en) * | 1992-10-08 | 1994-05-05 | Umax Data System Inc | Cylindrical color filter drive device for an optical reading device |
US6332064B1 (en) * | 1998-07-06 | 2001-12-18 | Oki Data Corporation | Image forming apparatus including a charging power supply and a neutralizing device |
-
1979
- 1979-02-21 JP JP1938279A patent/JPS55111967A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6151187A (en) * | 1984-08-21 | 1986-03-13 | Canon Inc | Electrophotographic device |
DE4237236A1 (en) * | 1992-10-08 | 1994-05-05 | Umax Data System Inc | Cylindrical color filter drive device for an optical reading device |
US6332064B1 (en) * | 1998-07-06 | 2001-12-18 | Oki Data Corporation | Image forming apparatus including a charging power supply and a neutralizing device |
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