JPS5699371A - Copying apparatus - Google Patents
Copying apparatusInfo
- Publication number
- JPS5699371A JPS5699371A JP178380A JP178380A JPS5699371A JP S5699371 A JPS5699371 A JP S5699371A JP 178380 A JP178380 A JP 178380A JP 178380 A JP178380 A JP 178380A JP S5699371 A JPS5699371 A JP S5699371A
- Authority
- JP
- Japan
- Prior art keywords
- temp
- circuit
- fixing
- heater
- cooling fan
- 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
Abstract
PURPOSE: To make fixing treatment sure just after the temperature rised to a fixable temp., by starting a cooling fan by a timer circuit which starts operating according to the detection of the arrival of a temp.-controlled heat-fixing heater at the predetermined temp.
CONSTITUTION: When the detection temp. by a thermocouple 5 is lower than a fixable temp., a thyristor 4 is put in a full conduction angle state by a temp. control circuit 6, and the AC voltage is straightly spplied to a fixing heater 3. When the heater 3 reaches the predetermined temp. at which copying is feasible, the circuit 6 generates a copiable signal by responding to the thermocouple 5, thereby causing a copiable lamp to light and a timer circuit 7 to start operating. At the same time, the fixing temp. of the heater 3 is held by the circuit 6, and after lapse of the predetermined time, the output of the circuit 7 inverts and causes a transistor 10 to conduct, so that the driving motor 13 for a cooling fan is started by way of a relay 11. Hence, even if the fixing treatment is started just after the fixable temp., heat is not deprived by the cooling fan and the sure treatment is accomplished.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP178380A JPS5699371A (en) | 1980-01-11 | 1980-01-11 | Copying apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP178380A JPS5699371A (en) | 1980-01-11 | 1980-01-11 | Copying apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5699371A true JPS5699371A (en) | 1981-08-10 |
Family
ID=11511167
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP178380A Pending JPS5699371A (en) | 1980-01-11 | 1980-01-11 | Copying apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5699371A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59214068A (en) * | 1983-05-19 | 1984-12-03 | Fuji Xerox Co Ltd | Fixing device of electrophotographic copying machine |
JPS62175789A (en) * | 1986-01-30 | 1987-08-01 | Canon Inc | Fixing device |
JPS62289879A (en) * | 1986-06-09 | 1987-12-16 | Canon Inc | Fixing device |
US7627259B2 (en) | 2005-06-28 | 2009-12-01 | Samsung Electronics Co., Ltd | Fuser cooling fan control method and image forming apparatus having the same |
-
1980
- 1980-01-11 JP JP178380A patent/JPS5699371A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59214068A (en) * | 1983-05-19 | 1984-12-03 | Fuji Xerox Co Ltd | Fixing device of electrophotographic copying machine |
JPS62175789A (en) * | 1986-01-30 | 1987-08-01 | Canon Inc | Fixing device |
JPS62289879A (en) * | 1986-06-09 | 1987-12-16 | Canon Inc | Fixing device |
US7627259B2 (en) | 2005-06-28 | 2009-12-01 | Samsung Electronics Co., Ltd | Fuser cooling fan control method and image forming apparatus having the same |
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