Image forming apparatus having high voltage power supplies

Details Image forming apparatus having high voltage power supplies Image forming apparatus having high voltage power supplies

2006-11-28

2009-10-06

Ngo, Hoang (Department: 2852)

Electrophotography

Machine operation

Having power supply

C399S089000

Reexamination Certificate

active

07599638

ABSTRACT:
An image forming apparatus comprising an image bearing member, a transfer mechanism that transfers a developer image formed on the image bearing member, a charger that charges the image bearing member, a first high voltage power supply substrate that applies a first voltage to the transfer mechanism, and a second high voltage power supply substrate that applies a second voltage to the charger, wherein the second voltage has a polarity opposite to the first voltage.

REFERENCES:
patent: 5923939 (1999-07-01), Koyama
patent: 2004240403 (2004-08-01), None
patent: 2005309278 (2005-11-01), None

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