JPS55120048A - Recording density control method in electrophotographic type printer - Google Patents
Recording density control method in electrophotographic type printerInfo
- Publication number
- JPS55120048A JPS55120048A JP2616679A JP2616679A JPS55120048A JP S55120048 A JPS55120048 A JP S55120048A JP 2616679 A JP2616679 A JP 2616679A JP 2616679 A JP2616679 A JP 2616679A JP S55120048 A JPS55120048 A JP S55120048A
- Authority
- JP
- Japan
- Prior art keywords
- recording density
- control method
- drum
- charge voltage
- density control
- 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
- Combination Of More Than One Step In Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
- Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
Abstract
PURPOSE: To make possible the controlling of stable recording density with a simple mechanism by controlling the charge voltage of photoreceptor.
CONSTITUTION: A photosensitive drum 1 is charged by corona discharge and light patterns are radiated on the drum 1 according to signals to form electrostatic latent images. After these images are developed, they are transferred onto recording paper 7 by transfer corona 6, whereby recording is accomplished. Here, the grid voltage of a corona charger 2 with mesh-form grid is controlled to change the grid voltage by making use of the fact that the charge voltage of the drum 1 may be changed and the intensity of the electrostatic latent images after the light radaition is proportional to the charge voltage, whereby the recording density may be controlled.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2616679A JPS55120048A (en) | 1979-03-08 | 1979-03-08 | Recording density control method in electrophotographic type printer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2616679A JPS55120048A (en) | 1979-03-08 | 1979-03-08 | Recording density control method in electrophotographic type printer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55120048A true JPS55120048A (en) | 1980-09-16 |
Family
ID=12185953
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2616679A Pending JPS55120048A (en) | 1979-03-08 | 1979-03-08 | Recording density control method in electrophotographic type printer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55120048A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5833266A (en) * | 1981-08-22 | 1983-02-26 | Minolta Camera Co Ltd | Electrophotographic copying machine |
US4603964A (en) * | 1984-10-22 | 1986-08-05 | Xerox Corporation | Photoreceptor charging scorotron |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5092141A (en) * | 1973-12-13 | 1975-07-23 | ||
JPS511132A (en) * | 1974-06-24 | 1976-01-07 | Canon Kk | |
JPS5134730A (en) * | 1974-07-09 | 1976-03-24 | Plessey Handel Investment Ag | |
JPS5147436A (en) * | 1974-10-21 | 1976-04-23 | Ricoh Kk |
-
1979
- 1979-03-08 JP JP2616679A patent/JPS55120048A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5092141A (en) * | 1973-12-13 | 1975-07-23 | ||
JPS511132A (en) * | 1974-06-24 | 1976-01-07 | Canon Kk | |
JPS5134730A (en) * | 1974-07-09 | 1976-03-24 | Plessey Handel Investment Ag | |
JPS5147436A (en) * | 1974-10-21 | 1976-04-23 | Ricoh Kk |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5833266A (en) * | 1981-08-22 | 1983-02-26 | Minolta Camera Co Ltd | Electrophotographic copying machine |
US4603964A (en) * | 1984-10-22 | 1986-08-05 | Xerox Corporation | Photoreceptor charging scorotron |
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