Title:
FIXING DEVICE AND IMAGE FORMING APPARATUS
Document Type and Number:
Japanese Patent JP2022131654
Kind Code:
A
Abstract:
To provide a fixing device that can prevent a nip forming member from falling off in an assembly process or during transport after the assembly to prevent the occurrence of a malfunction or an image defect caused by the fall-off.SOLUTION: A fixing device comprises: a rotatable endless fixing member 20; a pressure member 21 that is in contact with the fixing member 20 from the outside of the fixing member; a nip forming member 23 that is disposed inside the fixing member 20 and forms a nip part N with the pressure member 21 with the fixing member 20 therebetween; a reinforcement member 24 that supports the nip forming member 23; an urging member 40 that is fixed to the reinforcement member 24 at one end; and a heating member 22 that heats at least the fixing member 20. The nip forming member 23 has parts to be engaged 23b engaged with engagement parts E of the reinforcement member 24 at both ends in a longitudinal direction or at least at one part of an area other than both ends, and has a smaller rotation moment, which is applied through the engagement with the reinforcement member 24, than that in a case in which the nip forming member has the part to be engaged 23b only at one end in the longitudinal direction.SELECTED DRAWING: Figure 7
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Inventors:
FUJIWARA HITOSHI
Application Number:
JP2021030700A
Publication Date:
September 07, 2022
Filing Date:
February 26, 2021
Export Citation:
Assignee:
RICOH CO LTD
International Classes:
G03G15/20; G03G21/16
Attorney, Agent or Firm:
Chieko Tateno