Photocopying – Contact printing – Light boxes
Patent
1992-09-18
1993-07-06
Grimley, A. T.
Photocopying
Contact printing
Light boxes
361220, 361221, 361225, G03G 1502
Patent
active
052258785
ABSTRACT:
An image forming apparatus includes a latent image carrier having a movable surface, and a stationary contact brush charger for electrostatically charging the surface of the latent image carrier in contact therewith during a movement of the carrier surface relative to the brush charger. In this apparatus, the contact time t, during which any arbitrarily chosen point on the carrier surface then moving in one direction is held in contact with the brush charger, and the electric resistance R of each of the brush bristles forming the brush charger are chosen such that the product of the contact time t multiplied by the common logarithm of the electric resistance R, i.e., (t.times.log.sub.10 R), is within the range of 0.9 to 4.6.
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Asano Masaki
Iino Shuji
Ikegawa Akihito
Osawa Izumi
Grimley A. T.
Minolta Camera Kabushiki Kaisha
Smith Matthew S.
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