JPS57107351A - Jam detector circuit - Google Patents
Jam detector circuitInfo
- Publication number
- JPS57107351A JPS57107351A JP55183612A JP18361280A JPS57107351A JP S57107351 A JPS57107351 A JP S57107351A JP 55183612 A JP55183612 A JP 55183612A JP 18361280 A JP18361280 A JP 18361280A JP S57107351 A JPS57107351 A JP S57107351A
- Authority
- JP
- Japan
- Prior art keywords
- jam
- detected
- pulse signal
- circuit
- counter
- 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
- Paper Feeding For Electrophotography (AREA)
- Controlling Sheets Or Webs (AREA)
Abstract
PURPOSE: To simplify a circuit, by generating and counting a pulse signal synchronized with conveying speed of a conveyed material simultaneously detecting a position of the conveyed material with sensors then deciding a jam through this detected signal and the pulse signal.
CONSTITUTION: The circuit is such constituted that an encoder disc 6 and photointerruptor 7 are mechanically synchronized with a roller 3 to generate a pulse signal simultaneously conveyance of a sheet member 1 is detected by providing semsors 4, 5 and input to a counter 10 and decoder 12. Then an inverter 16 is operated by a difference of those detected signals or output signal. In this way, occurrence of a jam is detected and conveying devices 2, 3 can be controlled, then a simplified control circuit can be cnstituted by using a set of the counter 10, thus detection of the jam can be performed even though conveying speed is changed.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55183612A JPS57107351A (en) | 1980-12-24 | 1980-12-24 | Jam detector circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55183612A JPS57107351A (en) | 1980-12-24 | 1980-12-24 | Jam detector circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57107351A true JPS57107351A (en) | 1982-07-03 |
Family
ID=16138832
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55183612A Pending JPS57107351A (en) | 1980-12-24 | 1980-12-24 | Jam detector circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57107351A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0722128A1 (en) * | 1995-01-11 | 1996-07-17 | Mita Industrial Co., Ltd. | Jam detecting device for image forming apparatus |
-
1980
- 1980-12-24 JP JP55183612A patent/JPS57107351A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0722128A1 (en) * | 1995-01-11 | 1996-07-17 | Mita Industrial Co., Ltd. | Jam detecting device for image forming apparatus |
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