JPS5559480A - Fixing temperature control unit - Google Patents
Fixing temperature control unitInfo
- Publication number
- JPS5559480A JPS5559480A JP13279478A JP13279478A JPS5559480A JP S5559480 A JPS5559480 A JP S5559480A JP 13279478 A JP13279478 A JP 13279478A JP 13279478 A JP13279478 A JP 13279478A JP S5559480 A JPS5559480 A JP S5559480A
- Authority
- JP
- Japan
- Prior art keywords
- reference voltage
- paper
- thickness
- temperature
- fixing part
- 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.)
- Granted
Links
Landscapes
- Control Or Security For Electrophotography (AREA)
- Fixing For Electrophotography (AREA)
Abstract
PURPOSE: To effectively perform sure fixing irrespective of the quality of paper by effectively varying the temperature of the fixing part.
CONSTITUTION: Two copy switches 3-a, 3-b and the monostable multivibrator 20 of triger one-shot are provided and are connected to a reference voltage generating circuit 18. Then, when the copy switches 3-a, 3-b are selectively pushed according to the thickness of paper, the reference voltage corresponding to the thickness is applied from a reference voltage generating circuit 18 to a comparator 17, where it is compared with the output of a thermocouple 15, by which the temperature of the fixing part is correctly controlled according to the thickness. Upon lapse of a fixed time after ending of copying of thick paper, the reference voltage corresponding to the thin paper is applied to the comparator 17 by the operation of the monostable multivibrator 20, by which the AC supply of a heater 13 is controlled, thus the temperature of the fixing part is shifted to a low temperature state in a short time.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13279478A JPS5559480A (en) | 1978-10-27 | 1978-10-27 | Fixing temperature control unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13279478A JPS5559480A (en) | 1978-10-27 | 1978-10-27 | Fixing temperature control unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5559480A true JPS5559480A (en) | 1980-05-02 |
JPS6118751B2 JPS6118751B2 (en) | 1986-05-14 |
Family
ID=15089702
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13279478A Granted JPS5559480A (en) | 1978-10-27 | 1978-10-27 | Fixing temperature control unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5559480A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57116352A (en) * | 1981-01-12 | 1982-07-20 | Ricoh Co Ltd | Controlling method for copying machine |
JPS61138277A (en) * | 1984-12-10 | 1986-06-25 | Konishiroku Photo Ind Co Ltd | Control device for fixing temperature |
JPS63143575A (en) * | 1986-12-05 | 1988-06-15 | Konica Corp | Fixing device |
US5512992A (en) * | 1993-05-31 | 1996-04-30 | Samsung Electronics Co., Ltd. | Apparatus and method for controlling fusing temperature |
EP0722129A2 (en) * | 1995-01-11 | 1996-07-17 | Mita Industrial Co., Ltd. | Fixing temperature control device |
-
1978
- 1978-10-27 JP JP13279478A patent/JPS5559480A/en active Granted
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57116352A (en) * | 1981-01-12 | 1982-07-20 | Ricoh Co Ltd | Controlling method for copying machine |
JPS61138277A (en) * | 1984-12-10 | 1986-06-25 | Konishiroku Photo Ind Co Ltd | Control device for fixing temperature |
JPS63143575A (en) * | 1986-12-05 | 1988-06-15 | Konica Corp | Fixing device |
US5512992A (en) * | 1993-05-31 | 1996-04-30 | Samsung Electronics Co., Ltd. | Apparatus and method for controlling fusing temperature |
EP0722129A2 (en) * | 1995-01-11 | 1996-07-17 | Mita Industrial Co., Ltd. | Fixing temperature control device |
EP0722129A3 (en) * | 1995-01-11 | 1999-11-10 | Mita Industrial Co., Ltd. | Fixing temperature control device |
Also Published As
Publication number | Publication date |
---|---|
JPS6118751B2 (en) | 1986-05-14 |
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