JPS5553345A - Electrostatic recording device - Google Patents
Electrostatic recording deviceInfo
- Publication number
- JPS5553345A JPS5553345A JP12673678A JP12673678A JPS5553345A JP S5553345 A JPS5553345 A JP S5553345A JP 12673678 A JP12673678 A JP 12673678A JP 12673678 A JP12673678 A JP 12673678A JP S5553345 A JPS5553345 A JP S5553345A
- Authority
- JP
- Japan
- Prior art keywords
- surface potential
- circuit
- recording body
- drum
- detect
- 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
- Control Or Security For Electrophotography (AREA)
Abstract
PURPOSE: To increase the stability of control, by using a linear detector circuit as rectifier circuit, and controlling the processing means of image forming with the output thereof to make linear the relation between the surface potential of recording body and DC reproduction voltage.
CONSTITUTION: In an electrostatic recording device having a detecting means to detect the surface potential on the recording body as AC output and plural processing means to apply various processings to the recording body and form image on the recording body, a surface electrometer 50 to detect the surface potential of a drum 11 is provided in a developing device 25, and the detected AC signal is amplified and reproduced in DC in a rectifying-smoothing circuit 205 to be led into a sample hold circuit 206, so that a development bias control circuit 207 may be controlled. Thus, since a linear detector circuit is used, the linearity of DC reproduction voltage characteristic with respect to the surface potential of the drum 11 may be improved, and the compensation for temperature may be also sufficient.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12673678A JPS5553345A (en) | 1978-10-14 | 1978-10-14 | Electrostatic recording device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12673678A JPS5553345A (en) | 1978-10-14 | 1978-10-14 | Electrostatic recording device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5553345A true JPS5553345A (en) | 1980-04-18 |
Family
ID=14942614
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12673678A Pending JPS5553345A (en) | 1978-10-14 | 1978-10-14 | Electrostatic recording device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5553345A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5077046A (en) * | 1974-08-02 | 1975-06-24 | ||
JPS5225226B2 (en) * | 1972-06-14 | 1977-07-06 |
-
1978
- 1978-10-14 JP JP12673678A patent/JPS5553345A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5225226B2 (en) * | 1972-06-14 | 1977-07-06 | ||
JPS5077046A (en) * | 1974-08-02 | 1975-06-24 |
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