JPS5632153A - Image stabilizing method - Google Patents
Image stabilizing methodInfo
- Publication number
- JPS5632153A JPS5632153A JP10773579A JP10773579A JPS5632153A JP S5632153 A JPS5632153 A JP S5632153A JP 10773579 A JP10773579 A JP 10773579A JP 10773579 A JP10773579 A JP 10773579A JP S5632153 A JPS5632153 A JP S5632153A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- developing bias
- terminal
- charging
- signal enters
- 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 prevent the change in image density during continuous copying and photographic fog by applying developing bias voltage to a developing device during the pause period of copying operation and changing the same according to the number of copies and similarly changing the voltage of an image expouse light source.
CONSTITUTION: When the rotation signal enters the terminal T1 of a developing bias source voltage control timer circuit, the signal is sent to a developing device 13 and applies bias voltage thereto. When the drum rotation signal enters the terminal T1, a transistor Q2 operates to cause charging of a capacitor C1 to take place and Q3 to operate. When charging of the capacitor C1 progresses, the developing bias source voltage returns to the voltage not controlled. When the drum stop signal enters the terminal T1, the charging voltage of C1 starts discharg ing and according to the pause time, the controlling of the developing bias may be performed. In addition, it is also possible to control the exposure light source lighting voltage by using a similar timer circuit. With such constitution, the change in the density of images during cotinuous copying and photographic fog may be prevented.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10773579A JPS5632153A (en) | 1979-08-24 | 1979-08-24 | Image stabilizing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10773579A JPS5632153A (en) | 1979-08-24 | 1979-08-24 | Image stabilizing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5632153A true JPS5632153A (en) | 1981-04-01 |
Family
ID=14466614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10773579A Pending JPS5632153A (en) | 1979-08-24 | 1979-08-24 | Image stabilizing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5632153A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59116768A (en) * | 1982-12-24 | 1984-07-05 | Ricoh Co Ltd | Electrophotographic image controlling method |
| JP2015004900A (en) * | 2013-06-24 | 2015-01-08 | コニカミノルタ株式会社 | Image forming apparatus, control device, and image forming system |
-
1979
- 1979-08-24 JP JP10773579A patent/JPS5632153A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59116768A (en) * | 1982-12-24 | 1984-07-05 | Ricoh Co Ltd | Electrophotographic image controlling method |
| JPH0227668B2 (en) * | 1982-12-24 | 1990-06-19 | Ricoh Kk | |
| JP2015004900A (en) * | 2013-06-24 | 2015-01-08 | コニカミノルタ株式会社 | Image forming apparatus, control device, and image forming system |
| US9291933B2 (en) | 2013-06-24 | 2016-03-22 | Konica Minolta, Inc. | Image forming apparatus, control apparatus, and image forming system |
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