JPS57189168A - Fixing device for copy machine - Google Patents
Fixing device for copy machineInfo
- Publication number
- JPS57189168A JPS57189168A JP7417181A JP7417181A JPS57189168A JP S57189168 A JPS57189168 A JP S57189168A JP 7417181 A JP7417181 A JP 7417181A JP 7417181 A JP7417181 A JP 7417181A JP S57189168 A JPS57189168 A JP S57189168A
- Authority
- JP
- Japan
- Prior art keywords
- sensor
- roller
- copy paper
- paper
- output
- 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
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
- G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
- G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
- G03G15/2039—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat with means for controlling the fixing temperature
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fixing For Electrophotography (AREA)
Abstract
PURPOSE:To simplify a detection control circuit and to prevent position shift at the time of copy paper removal, by providing a pyroelectric infrared ray sensor near an image side thermal fixing roller insert-carrying a transcription paper and making the temperature control and a wound said paper detection. CONSTITUTION:A thermal fixing roller pair 1 carries copy paper 2 through clipping and consists of a picture side roller 4 melting and fixing a toner 3 and a non-picture side roller 5, which is provided with a heater 6. Near the roller 4, a pyroelectric type infrared ray sensor 7 is provided and the change in heat from the roller 4 is detected. A temperature control circuit 8 amplifies the change in the output from the sensor 7, compares it with a reference value to make power application or input phase control. A temperature detection circuit 9 differentially amplifies the output of the sensor 7 to detect a failed carrying state of the copy paper 2. Thus, a weak sensor output fluctuation is caught as the temperature fluctuation to be controlled and a large fluctuation can be taken as wound copy paper, allowing to obtain a senseor without troubled by non-contactness and position shift using only one sensor.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7417181A JPS57189168A (en) | 1981-05-19 | 1981-05-19 | Fixing device for copy machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7417181A JPS57189168A (en) | 1981-05-19 | 1981-05-19 | Fixing device for copy machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57189168A true JPS57189168A (en) | 1982-11-20 |
Family
ID=13539438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7417181A Pending JPS57189168A (en) | 1981-05-19 | 1981-05-19 | Fixing device for copy machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57189168A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60120464U (en) * | 1983-10-11 | 1985-08-14 | イ−ストマン コダック カンパニ− | Fusion device |
JPS6394279A (en) * | 1986-10-09 | 1988-04-25 | Fuji Xerox Co Ltd | Safety device for heating of heat roller |
EP2573625A3 (en) * | 2011-09-20 | 2015-07-08 | Samsung Electronics Co., Ltd. | Fuser protection device and image forming apparatus having the same |
-
1981
- 1981-05-19 JP JP7417181A patent/JPS57189168A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60120464U (en) * | 1983-10-11 | 1985-08-14 | イ−ストマン コダック カンパニ− | Fusion device |
JPS6394279A (en) * | 1986-10-09 | 1988-04-25 | Fuji Xerox Co Ltd | Safety device for heating of heat roller |
EP2573625A3 (en) * | 2011-09-20 | 2015-07-08 | Samsung Electronics Co., Ltd. | Fuser protection device and image forming apparatus having the same |
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