Photocopying – Contact printing – Light boxes
Patent
1994-09-26
1995-08-08
Fuller, Benjamin R.
Photocopying
Contact printing
Light boxes
355210, G03G 1502
Patent
active
054403740
ABSTRACT:
A charging device includes a movable member to be charged; a charging member contactable to the member to be charged to electrically charge the member to be charged, a voltage application means of applying an oscillating voltage between the charging member and the member to be charged; wherein Wc/Wd<1.0 is satisfied, where Wc is a weight of the charging member, and Wd is a weight of the member to be charged; and wherein Vp>f/100 (mm/sec), where Vp (mm/sec) is a moving speed of the member to be charged, and f (Hz) is a frequency of the oscillating voltage.
REFERENCES:
patent: 4727453 (1988-02-01), Ewing
patent: 4851960 (1989-07-01), Nakamura et al.
patent: 5272506 (1993-12-01), Goto et al.
patent: 5331372 (1994-07-01), Tsuda et al.
Barlow Jr. John E.
Canon Kabushiki Kaisha
Fuller Benjamin R.
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