JPS5699371A - Copying apparatus - Google Patents

Copying apparatus

Info

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
Application number
JP178380A
Other languages
Japanese (ja)
Inventor
Tomonobu Nakamine
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP178380A priority Critical patent/JPS5699371A/en
Publication of JPS5699371A publication Critical patent/JPS5699371A/en
Pending legal-status Critical Current

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
JP178380A 1980-01-11 1980-01-11 Copying apparatus Pending JPS5699371A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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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