Image forming apparatus

Details Image forming apparatus Image forming apparatus

2006-05-09

2006-05-09

Chen, Sophia S. (Department: 2852)

Electrophotography

Image formation

Transfer

C399S308000

Reexamination Certificate

active

07043183

ABSTRACT:
The image forming apparatus has an image bearing member bearing an image thereon, and a transfer member contacting with the image bearing member in a contact portion, the image on the image bearing member is transferred to a transfer medium in the contact portion by the transfer member, the Young's modulus of the image bearing member is equal to or greater than 2×108[N/m2] and equal to or less than 9×109[N/m2] and contact pressure P between the image bearing member and the transfer member is equal to or greater than 4.0×104[N/m2] and equal to or less than 7.3×104[N/m2]. Thereby, there is provided an image forming apparatus which prevents the deterioration of an image even if use is made of an image bearing member of high hardness.

REFERENCES:
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patent: 6246845 (2001-06-01), Hosoya et al.
patent: 6253038 (2001-06-01), Ito et al.
patent: 6397034 (2002-05-01), Tarnawskyj et al.
patent: 2001/0026709 (2001-10-01), Hara et al.
patent: 2001/0028815 (2001-10-01), Sato
patent: 2002/0164177 (2002-11-01), Watanabe et al.
patent: 10-698 (1998-01-01), None

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