JPS6479780A - Heat fixing device - Google Patents

Heat fixing device

Info

Publication number
JPS6479780A
JPS6479780A JP23658587A JP23658587A JPS6479780A JP S6479780 A JPS6479780 A JP S6479780A JP 23658587 A JP23658587 A JP 23658587A JP 23658587 A JP23658587 A JP 23658587A JP S6479780 A JPS6479780 A JP S6479780A
Authority
JP
Japan
Prior art keywords
temp
information
cpu
turned
heater lamp
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
JP23658587A
Other languages
Japanese (ja)
Inventor
Masayoshi Morita
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP23658587A priority Critical patent/JPS6479780A/en
Publication of JPS6479780A publication Critical patent/JPS6479780A/en
Pending legal-status Critical Current

Links

Landscapes

  • Fixing For Electrophotography (AREA)

Abstract

PURPOSE:To enhance a heat radiating effect and to prevent the deterioration of fixing rollers provided with a heating roller and press-contact roller and to prevent the deformation thereby by providing a controller which periodically rotates and stops both rollers. CONSTITUTION:A CPU 33 takes the signal of a temp. detecting sensor 7 in a ready resting state as temp. information therein via an A/D conversion circuit 31. The temp. information is compared with the information previously stored in a ROM. Whether the temp. information taken into the CPU is above a temp. T1 or below a temp. T2 is discriminated. A heater lamp 3 is turned off and a driving motor 5 is turned off if said information is above the temp. T1. Conversely, the CPU 33 outputs the signal to turn on the heater lamp 3 and turns on the driving motor 7 if the temp. information taken therein is below the temp. T2. The rotation or stop of the heat roller 1 is executed according to the temp. control of the heat roller 1 in such a manner. The heat roller 1 is kept rotated until the image formation ends without being stopped even if the heater lamp 3 is turned off after the image formation is started.
JP23658587A 1987-09-21 1987-09-21 Heat fixing device Pending JPS6479780A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23658587A JPS6479780A (en) 1987-09-21 1987-09-21 Heat fixing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23658587A JPS6479780A (en) 1987-09-21 1987-09-21 Heat fixing device

Publications (1)

Publication Number Publication Date
JPS6479780A true JPS6479780A (en) 1989-03-24

Family

ID=17002813

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23658587A Pending JPS6479780A (en) 1987-09-21 1987-09-21 Heat fixing device

Country Status (1)

Country Link
JP (1) JPS6479780A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5517293A (en) * 1994-05-31 1996-05-14 Fujitsu Limited Heat roller fixing apparatus with rotating lamps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5517293A (en) * 1994-05-31 1996-05-14 Fujitsu Limited Heat roller fixing apparatus with rotating lamps

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