JPS5748763A - Heat roller fixation device - Google Patents

Heat roller fixation device

Info

Publication number
JPS5748763A
JPS5748763A JP12431780A JP12431780A JPS5748763A JP S5748763 A JPS5748763 A JP S5748763A JP 12431780 A JP12431780 A JP 12431780A JP 12431780 A JP12431780 A JP 12431780A JP S5748763 A JPS5748763 A JP S5748763A
Authority
JP
Japan
Prior art keywords
press
heat roller
roller
rollers
contact
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
JP12431780A
Other languages
Japanese (ja)
Inventor
Teruo Mineshima
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta 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 Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP12431780A priority Critical patent/JPS5748763A/en
Publication of JPS5748763A publication Critical patent/JPS5748763A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
    • G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
    • G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
    • G03G15/2017—Structural details of the fixing unit in general, e.g. cooling means, heat shielding means
    • G03G15/2028—Structural details of the fixing unit in general, e.g. cooling means, heat shielding means with means for handling the copy material in the fixing nip, e.g. introduction guides, stripping means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fixing For Electrophotography (AREA)

Abstract

PURPOSE:To prevent transfer paper from being wound into a press-contacting roller and a heat roller and from the contamination of the rollers, by providing a separating ring, which has a larger diameter than those of the rollers, on the circumference of either roller so that the ring is internally brought into contact with the part of said rollers. CONSTITUTION:A separating ring 8 has a larger than that of a heat roller 1 and is fitted being brought into contact with a heat roller 1 at the contact with a press- contacting roller 2. Since the press-contacting roller 2 is made of an elastic material, it is press-contacted with the circumferential surface of the heat roller 1 and the external circumferential surface of the separating ring 8 and although there is a little difference in pressing force to both, passing transfer paper is heated and press-contacted nearly uniformly to be fixed. The tip end 3a of an upper guide plate 3 is so provided that it projects toward the heat roller 1 from the external circumference of the separating ring 8 and the leading end of the transfer paper passed through the press-contact part abuts the guide plate 3 and is carried along a normal path without fail, so that said paper is not wound with the rollers.
JP12431780A 1980-09-08 1980-09-08 Heat roller fixation device Pending JPS5748763A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12431780A JPS5748763A (en) 1980-09-08 1980-09-08 Heat roller fixation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12431780A JPS5748763A (en) 1980-09-08 1980-09-08 Heat roller fixation device

Publications (1)

Publication Number Publication Date
JPS5748763A true JPS5748763A (en) 1982-03-20

Family

ID=14882331

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12431780A Pending JPS5748763A (en) 1980-09-08 1980-09-08 Heat roller fixation device

Country Status (1)

Country Link
JP (1) JPS5748763A (en)

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