Charging device, photoconductive drum unit, and image...

Details Charging device, photoconductive drum unit, and image... Charging device, photoconductive drum unit, and image...

2007-03-05

2009-08-04

Gray, David M (Department: 2852)

Electrophotography

Image formation

Charging

Reexamination Certificate

active

07570902

ABSTRACT:
A photoconductive drum unit includes a frame, a photoconductive drum, and a scorotron charging unit. The charging unit includes a pair of mounting members, a discharging electrode filament, a shield casing, a grid, and a connecting member. The mounting members are mounted and fixed at both end portions of the frame. The discharging electrode filament extends between the mounting members in a tensioned state. The shield casing is supported by being connected between the mounting members and covers the discharging electrode filament. The grid extends between the mounting members in a tensioned state and is arranged in an opening of the shield casing. The connecting member connects the mounting members and the shield casing in a state in which a slight displacement is permitted between the mounting members and the shield casing.

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Official communication issued in the counterpart European Application No. 07103027.4, mailed on Jul. 18, 2007.

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