JPS5642255A - Fixing unit - Google Patents

Fixing unit

Info

Publication number
JPS5642255A
JPS5642255A JP11904979A JP11904979A JPS5642255A JP S5642255 A JPS5642255 A JP S5642255A JP 11904979 A JP11904979 A JP 11904979A JP 11904979 A JP11904979 A JP 11904979A JP S5642255 A JPS5642255 A JP S5642255A
Authority
JP
Japan
Prior art keywords
frame
fixing
rollers
roller
supporting frame
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
JP11904979A
Other languages
Japanese (ja)
Inventor
Koichi Miyamoto
Hideki Tada
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP11904979A priority Critical patent/JPS5642255A/en
Publication of JPS5642255A publication Critical patent/JPS5642255A/en
Pending legal-status Critical Current

Links

Landscapes

  • Fixing For Electrophotography (AREA)
  • Controlling Sheets Or Webs (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)

Abstract

PURPOSE: To prevent scratches, dents, and other damages on a pair of pressure fixing rollers for fixing a toner image by stopping or reversely rotating the rollers when their gap increases to or above a given value.
CONSTITUTION: Fixing roller 1 of steel is supported rotatably on supporting frame 4 and pressing roller 2 of steel is held rotatably on supporting frame 3, and each frame 3, and each frame is held pivotally on shaft 5 with spring 7 compressed with screw 6 so as to bring each roller into pressed contact. End A of supporting frame 4 is in contact to lever 14, held pivotally on supporting shaft 15, for detecting displacement of frame 4 caused by entrance fo paper P to be fixed into the fixing unit. On occurrence on an abnormal displacemnet predetermined in advance, rotation of rollers 1, 2 is stopped or reversed by actuating microswicth 16.
COPYRIGHT: (C)1981,JPO&Japio
JP11904979A 1979-09-17 1979-09-17 Fixing unit Pending JPS5642255A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11904979A JPS5642255A (en) 1979-09-17 1979-09-17 Fixing unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11904979A JPS5642255A (en) 1979-09-17 1979-09-17 Fixing unit

Publications (1)

Publication Number Publication Date
JPS5642255A true JPS5642255A (en) 1981-04-20

Family

ID=14751634

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11904979A Pending JPS5642255A (en) 1979-09-17 1979-09-17 Fixing unit

Country Status (1)

Country Link
JP (1) JPS5642255A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0239227B2 (en) * 1982-04-01 1990-09-04 Hoshino Bussan
US7330689B2 (en) * 2003-03-05 2008-02-12 Kabushiki Kaisha Toshiba Method for detecting damage of a heating roller of a fixing apparatus based on its peripheral speed

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0239227B2 (en) * 1982-04-01 1990-09-04 Hoshino Bussan
US7330689B2 (en) * 2003-03-05 2008-02-12 Kabushiki Kaisha Toshiba Method for detecting damage of a heating roller of a fixing apparatus based on its peripheral speed

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