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1. WO2002037191 - THERMAL FIXING APPARATUS

Publication Number WO/2002/037191
Publication Date 10.05.2002
International Application No. PCT/JP2001/009229
International Filing Date 19.10.2001
IPC
G03G 15/20 2006.01
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
15Apparatus for electrographic processes using a charge pattern
20for fixing, e.g. by using heat
CPC
G03G 15/2064
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
15Apparatus for electrographic processes using a charge pattern
20for fixing, e.g. by using heat
2003using heat
2014using contact heat
2064combined with pressure
G03G 2215/2016
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
2215Apparatus for electrophotographic processes
20Details of the fixing device or porcess
2003Structural features of the fixing device
2016Heating belt
G03G 2215/2035
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
2215Apparatus for electrophotographic processes
20Details of the fixing device or porcess
2003Structural features of the fixing device
2016Heating belt
2035the fixing nip having a stationary belt support member opposing a pressure member
Applicants
  • SUMITOMO ELECTRIC INDUSTRIES, LTD. [JP]/[JP] (AllExceptUS)
  • NATSUHARA, Masuhiro [JP]/[JP] (UsOnly)
  • NAKATA, Hirohiko [JP]/[JP] (UsOnly)
Inventors
  • NATSUHARA, Masuhiro
  • NAKATA, Hirohiko
Agents
  • JODAI, Tetsuji
Priority Data
2000-33451101.11.2000JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) THERMAL FIXING APPARATUS
(FR) DISPOSITIF DE FIXATION THERMIQUE
Abstract
(EN)
A thermal fixing apparatus employing a ceramics heater and a tubular fixing film in which high speed fixing of 24 ppm or above is realized while enhancing durability of the fixing film and the fixing performance furthermore. The fixing face side surface of a ceramics heater (10) touching a fixing film (3) and at least the part of a heater support (12) adjacent to the fixing face side surface have a shape substantially identical to the naturally deformed shape of the fixing film (3) under a stationary state pressed by a press roller (4) at a specified nip width or under a traveling state. Alternatively, they may have a planar shape at the nip part and on the inlet side and outlet side contiguous thereto and may have a curved shape copying the tubular shape of the fixing film (3) at other parts.
(FR)
La présente invention concerne un dispositif de fixation thermique faisant intervenir l"utilisation d"un élément chauffant céramique et d"un film de fixation thermique se caractérisant par une vitesse de fixation de 24 ppm ou plus. Le dispositif de fixation permet d"augmenter la longévité du film de fixation et les performances de fixation. La surface côté fixation de l"élément céramique chauffant (10), venant en contact avec le film de fixation (3) et au moins la partie du support d"élément chauffant (12), adjacente à la surface côté fixation, ont une forme sensiblement identique à la forme naturellement modifiée du film de fixation (3) dans un état stationnaire dans lequel un rouleau de compression (4) appuie sur lui avec une largeur de contact spécifiée, ou dans un état de déplacement. De manière alternative, elles peuvent avoir une forme plane au niveau d"une partie de contact et du côté entrée et du côté sortie contigus à ladite partie, et elles peuvent avoir une forme incurvée imitant la forme tubulaire du film de fixation (3) au niveau d"autres parties.
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