Image forming apparatus

Details Image forming apparatus Image forming apparatus

2006-12-13

2009-11-17

Lee, Susan S (Department: 2852)

Electrophotography

Diagnostics

Image forming component

C399S170000, C399S315000

Reexamination Certificate

active

07620335

ABSTRACT:
An image forming apparatus that includes: plural photosensitive members; plural charging units respectively opposed to the plurality of photosensitive members; a high-voltage power supply unit which applies a voltage to the charging unit; and a discharge detecting unit which detects discharge of the charging unit and detects abnormality of the charging unit, wherein the plural charging units are connected to the discharge detecting unit in parallel.

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patent: 6754058 (2004-06-01), Anzawa et al.
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patent: A 2003-316128 (2003-11-01), None
patent: A 2003-330251 (2003-11-01), None
patent: A 2004-138838 (2004-05-01), None
patent: 2005322617 (2005-11-01), None

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