Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific current responsive fault sensor
Patent
1995-03-14
1997-06-10
Smith, Matthew S.
Electricity: electrical systems and devices
Safety and protection of systems and devices
With specific current responsive fault sensor
361225, 361230, 361214, 399115, 399100, 399167, G03G 1502
Patent
active
056381581
ABSTRACT:
At least a photosensitive drum 2 and charge roller 9 are attached to a unit 8 so that the photosensitive drum 2 and charge roller 9 can be freely attached to and detached from an apparatus body 1 in unison with the unit case 8, and the charge roller 9 can be freely brought into and out of contact with the surface of the photosensitive drum 2. The apparatus body 1 is provided with pressure cams 5a and 5b adapted to cause the charge roller 9 to be brought into and out of contact with the surface of the photosensitive drum 2.
REFERENCES:
patent: 4371252 (1983-02-01), Ushida et al.
patent: 5095335 (1992-03-01), Watanabe et al.
patent: 5367364 (1994-11-01), Michlin et al.
patent: 5386274 (1995-01-01), Sanpe et al.
patent: 5390007 (1995-02-01), Kugoh et al.
patent: 5465136 (1995-11-01), Watanabe
patent: 5475472 (1995-12-01), Saito et al.
Otsuka Hirohisa
Sanpe Atsushi
Sudo Kazuhisa
Ricoh & Company, Ltd.
Smith Matthew S.
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