Image forming apparatus with measuring technique

Details Image forming apparatus with measuring technique Image forming apparatus with measuring technique

2008-07-22

2008-07-22

Ngo, Hoang (Department: 2852)

Electrophotography

Diagnostics

Consumable

Reexamination Certificate

active

11389094

ABSTRACT:
An image forming apparatus including a photoreceptor that rotates, a charging member provided in contact with or in close proximity of the photoreceptor to charge the photoreceptor, a charge amount detecting portion that accumulates current flowing across the photoreceptor to obtain a charge amount of the photoreceptor, while the current is being applied from the charging member until a voltage on a surface of the photoreceptor substantially corresponds to the voltage applied by the charging member, and a controller that calculates a film thickness of the photoreceptor based on the charge amount.

REFERENCES:
patent: 5159388 (1992-10-01), Yoshiyama et al.
patent: 2004/0184825 (2004-09-01), Shin
patent: 1530765 (2004-09-01), None
patent: 59-69774 (1984-04-01), None
patent: 5-223513 (1993-08-01), None
patent: 9-101654 (1997-04-01), None
Notification of Reason for Refusal, Feb. 8, 2008 by First Patent Examination Department, Amusement (Electric Game) Division. Chuetsu ONO Tel. 03-3581-1101 (Ext. 3264).

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