Title:
FIXING DEVICE
Document Type and Number:
Japanese Patent JP3738615
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a fixing device in which the thickness of a fixing roller member is reduced without causing plastic deformation, which is small-sized and whose nip width is made large, by which energy saving is attained and whose warm-up time is made short by constituting the fixing roller member of a thin cylindrical elastic body.
SOLUTION: A fixing roller 17a using a thin plate elastic roller that is the thin cylindrical elastic body having a spring property to fix a color toner image is arranged on an upper side and a press-contacting roller 47a having elasticity is arranged on a lower side at the fixing device 17. The fixing roller 17a is held by a supporting roller 171h driven and rotated by the fixing roller 17a. The press-contacting roller 47a is brought into press-contact with the fixing roller 17a, so that the pressing force of the press-contacting roller 47a is received by the elastic force of the thin plate elastic roller of the fixing roller 17a. The rubber roller layer 471b of the press-contacting roller 47a is pressed by the surface of the thin plate elastic roller that is elliptically spread without having the plastic deformation and is formed into a nearly planar shape, so that a projecting nip part N whose width is large is formed on the lower side.
Inventors:
Satoshi Haneda
Kuki Nagase
Kunio Shigeta
Yotaro Sato
Kuki Nagase
Kunio Shigeta
Yotaro Sato
Application Number:
JP23049999A
Publication Date:
January 25, 2006
Filing Date:
August 17, 1999
Export Citation:
Assignee:
Konica Minolta Holdings Co., Ltd.
International Classes:
G03G15/20; (IPC1-7): G03G15/20
Domestic Patent References:
| JP59127076A | ||||
| JP5065601A | ||||
| JP7092840A | ||||
| JP4156576A | ||||
| JP57189170A |
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