Reproduction machine with improved transfer roll

Details Reproduction machine with improved transfer roll Reproduction machine with improved transfer roll

1975-01-10

1976-05-04

Hix, L. T.

Photocopying

Including fiber optics

355 30, G03G 1522

Patent

active

039543323

ABSTRACT:
Apparatus is provided for heating an electrically biased transfer roll in an electrostatic reproduction machine so as to improve the transfer of a developed electrostatic image from a photoreceptor to a transfer member during operation of the machine. The roll is heated to maintain the resistivity thereof within a range which will effect optimum transfer, and to overcome the detrimental effects of ambient conditions such as humidity changes on the resistivity.

REFERENCES:
patent: 3591276 (1971-07-01), Byrne
patent: 3634007 (1972-01-01), Verderber et al.
patent: 3677632 (1972-07-01), MacDonald
patent: 3685896 (1972-08-01), Kaupp
patent: 3781105 (1973-12-01), Meagher
patent: 3837741 (1974-09-01), Spencer
patent: 3877416 (1975-04-01), Donohue et al.
patent: 3893761 (1975-07-01), Buchan et al.

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