JPS5637945A - Method of detecting abnormality of paper feed - Google Patents
Method of detecting abnormality of paper feedInfo
- Publication number
- JPS5637945A JPS5637945A JP11291679A JP11291679A JPS5637945A JP S5637945 A JPS5637945 A JP S5637945A JP 11291679 A JP11291679 A JP 11291679A JP 11291679 A JP11291679 A JP 11291679A JP S5637945 A JPS5637945 A JP S5637945A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- detector
- paper feed
- abnormality
- feed
- 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
- Handling Of Cut Paper (AREA)
- Controlling Sheets Or Webs (AREA)
Abstract
PURPOSE: To accurately detect abnormality of paper feed, by moving a detector together with paper for a copier or the like and detecting the abnormality in terms of the change in the detection signal of the detector.
CONSTITUTION: A noncontact type detector 5 is installed in a paper feed section so that the detector is located at one of the front and rear ends of paper 4, for example, at the front end 4a and moved together with the paper 4. When the paper 4 is jammed on the way of its feed, it is delayed and only the detector 5 is moved. As a result, the detector 5 does not detect the paper 4 but detects a guide 3 and the detection signal of the detector changes. The abnormality of the paper feed can be accurately detected in terms of the change without being affected by a paper feed error as in conventional cases.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11291679A JPS5637945A (en) | 1979-09-05 | 1979-09-05 | Method of detecting abnormality of paper feed |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11291679A JPS5637945A (en) | 1979-09-05 | 1979-09-05 | Method of detecting abnormality of paper feed |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5637945A true JPS5637945A (en) | 1981-04-11 |
Family
ID=14598691
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11291679A Pending JPS5637945A (en) | 1979-09-05 | 1979-09-05 | Method of detecting abnormality of paper feed |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5637945A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5028042A (en) * | 1989-05-15 | 1991-07-02 | Sharp Kabushiki Kaisha | Image forming apparatus having a controller to prevent erroneous feeding from a rotatable cassette and method thereof |
US20100066782A1 (en) * | 2008-09-16 | 2010-03-18 | Canon Kabushiki Kaisha | Printing apparatus and printing method |
-
1979
- 1979-09-05 JP JP11291679A patent/JPS5637945A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5028042A (en) * | 1989-05-15 | 1991-07-02 | Sharp Kabushiki Kaisha | Image forming apparatus having a controller to prevent erroneous feeding from a rotatable cassette and method thereof |
US20100066782A1 (en) * | 2008-09-16 | 2010-03-18 | Canon Kabushiki Kaisha | Printing apparatus and printing method |
US8511781B2 (en) * | 2008-09-16 | 2013-08-20 | Canon Kabushiki Kaisha | Printing apparatus having movable sensor and method for using |
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