JPS6444474A - Image forming device - Google Patents
Image forming deviceInfo
- Publication number
- JPS6444474A JPS6444474A JP20165187A JP20165187A JPS6444474A JP S6444474 A JPS6444474 A JP S6444474A JP 20165187 A JP20165187 A JP 20165187A JP 20165187 A JP20165187 A JP 20165187A JP S6444474 A JPS6444474 A JP S6444474A
- Authority
- JP
- Japan
- Prior art keywords
- transfer sheet
- turned
- switch
- transfer
- carrier
- 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
- Fixing For Electrophotography (AREA)
Abstract
PURPOSE:To prevent a fault in transfer and to speed up carrier by providing a proper means for detecting a transfer sheet on a carrier path for a transfer sheet and controlling the rotating speed of a fixing roller which specifies the carrier speed of the transfer sheet according to the signal thereof. CONSTITUTION:In an image forming device in which the transfer of an image is completed by a photosensitive drum 31 and the transfer sheet is carried by the fixing rollers 45 so as to execute thermal fixing, a switch S1 which is turned on if the transfer sheet contacts is provided on the carrier path for the transfer sheet. And while the S1 is turned on, the rotating speed of the fixing roller is equalized to that of the photosensitive body and if the switch S1 is turned off, the rotating speed of the fixing roller is accelerated. A switch S2 is provided just before the transfer sheet enters the photosensitive drum and detects that the tailing edge of the transfer sheet passes a transferring area. And if the switch S2 is turned off even the 1st switch S1 is turned on, the rotating speed of the fixing roller is accelerated after a certain time by a timer, so that the acceleration of carrier can be attained and the fault in transfer can be prevented.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20165187A JPS6444474A (en) | 1987-08-12 | 1987-08-12 | Image forming device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20165187A JPS6444474A (en) | 1987-08-12 | 1987-08-12 | Image forming device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6444474A true JPS6444474A (en) | 1989-02-16 |
Family
ID=16444623
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20165187A Pending JPS6444474A (en) | 1987-08-12 | 1987-08-12 | Image forming device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6444474A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0322270U (en) * | 1989-07-12 | 1991-03-07 | ||
US5187528A (en) * | 1990-04-13 | 1993-02-16 | Asahi Kogaku Kogyo Kabushiki Kaisha | Electrophotographic image forming apparatus having continuous form skew prevention |
-
1987
- 1987-08-12 JP JP20165187A patent/JPS6444474A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0322270U (en) * | 1989-07-12 | 1991-03-07 | ||
US5187528A (en) * | 1990-04-13 | 1993-02-16 | Asahi Kogaku Kogyo Kabushiki Kaisha | Electrophotographic image forming apparatus having continuous form skew prevention |
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