Electrophotography – Image formation – Photoconductive member
Patent
1998-05-21
2000-04-25
Brase, Sandra
Electrophotography
Image formation
Photoconductive member
399297, G03G 1500
Patent
active
060553995
ABSTRACT:
An image forming apparatus capable of preventing disturbance in an image formed on an image bearing member, and a failure in image transfer is provided. In the image forming apparatus, an image bearing member and an intermediate transfer member to which a driving force from a motor is independently transmitted via a gear train (gear portions, driving gears, an idler gear and a gear) are brought in pressure contact with each other at a transfer nip portion. A dynamic damper is provided on the shaft of the motor. According to the present invention, since the amplification of vibration due to the resonance of the motor is suppressed by the damping effect of the dynamic damper, it is possible to suppress the vibration of the image bearing member and the intermediate transfer member, and to prevent disturbance in a latent image formed on the surface of the image bearing member, and a failure in image transfer from the image bearing member to the intermediate transfer member, and from the intermediate transfer member to a transfer material.
REFERENCES:
patent: 5136332 (1992-08-01), Johnson
patent: 5170209 (1992-12-01), Tompkins et al.
patent: 5202733 (1993-04-01), Hediger et al.
patent: 5390010 (1995-02-01), Yamahata et al.
patent: 5420664 (1995-05-01), Miwa et al.
patent: 5689764 (1997-11-01), Fujuchi et al.
patent: 5708933 (1998-01-01), Nogami et al.
Brase Sandra
Canon Kabushiki Kaisha
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