JPS5564268A - Pressure fixing device - Google Patents

Pressure fixing device

Info

Publication number
JPS5564268A
JPS5564268A JP13818878A JP13818878A JPS5564268A JP S5564268 A JPS5564268 A JP S5564268A JP 13818878 A JP13818878 A JP 13818878A JP 13818878 A JP13818878 A JP 13818878A JP S5564268 A JPS5564268 A JP S5564268A
Authority
JP
Japan
Prior art keywords
copying paper
signal
fixing roller
sheet material
rollers
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
Application number
JP13818878A
Other languages
Japanese (ja)
Other versions
JPS605947B2 (en
Inventor
Ichiro Ito
Mitsuo Nakamura
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 JP13818878A priority Critical patent/JPS605947B2/en
Publication of JPS5564268A publication Critical patent/JPS5564268A/en
Publication of JPS605947B2 publication Critical patent/JPS605947B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Fixing For Electrophotography (AREA)

Abstract

PURPOSE: To prevent the end edges of a sheet material from becoming sharp by making the pressing force of the fixing roller position opposing to the end parts of the sheet material smaller than the pressing force of the fixing roller portion opposing to the other portions.
CONSTITUTION: Now, when the copying paper S which carries toner powder images is fed toward between fixing rollers 1, 2, first a copying paper detector 11 detects the copying paper and generates a signal. This signal causes a lower fixing roller 2 to move upward and be pressure contacted to an upper fixing roller 1 under the specified pressure. As the rollers are pressure contacted, an arm detector 10 detects an arm and generates a signal. By this signal, the revolution of a braking shaft 5 is blocked to stop a pressing motor 7. The position of the copying paper detector 11 is so set that the fixing rollers 1, 2 are pressure contacted right after the leading end part of the copying paper S comes out to the outlet side between the fixing rollers. Hence, sharpening of the leading end edges of the copying paper may be prevented. In this way, sharpening of the end edges of the sheet material may be prevented.
COPYRIGHT: (C)1980,JPO&Japio
JP13818878A 1978-11-09 1978-11-09 pressure fixing device Expired JPS605947B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13818878A JPS605947B2 (en) 1978-11-09 1978-11-09 pressure fixing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13818878A JPS605947B2 (en) 1978-11-09 1978-11-09 pressure fixing device

Publications (2)

Publication Number Publication Date
JPS5564268A true JPS5564268A (en) 1980-05-14
JPS605947B2 JPS605947B2 (en) 1985-02-14

Family

ID=15216117

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13818878A Expired JPS605947B2 (en) 1978-11-09 1978-11-09 pressure fixing device

Country Status (1)

Country Link
JP (1) JPS605947B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62125371A (en) * 1985-11-27 1987-06-06 Toppan Printing Co Ltd Laser engraving machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62125371A (en) * 1985-11-27 1987-06-06 Toppan Printing Co Ltd Laser engraving machine

Also Published As

Publication number Publication date
JPS605947B2 (en) 1985-02-14

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