Transfer type electrostatic copying apparatus

Details Transfer type electrostatic copying apparatus Transfer type electrostatic copying apparatus

1979-10-17

1982-08-24

Braun, Fred L.

Photocopying

Including fiber optics

355 3DR, 355 3FU, G03G 1500

Patent

active

043458343

ABSTRACT:
A transfer type electrostatic copying apparatus in which the area of a photosensitive member cleaned by a cleaning device reaches an exposure zone simultaneously or prior to the arrival of a movable portion of an optical system or an original carrier at an exposure starting position from a home position thereof. This results in clear and definite copied images being obtained. At the earlier stage at which the movable portion of the optical system or the original carrier starts moving, the photosensitive member is subjected to the cleaning process, and then the exposure process is effected when the movable portion or the original carrier is running stably. Thus, the electrostatic latent image obtained by the exposure are clear and definite and free from undesirable blurs. The photosensitive member is a rotary drum having bosses connected at opposite axial ends thereof which are removably mounted in holder members on the sidewalls of the copying apparatus. A conical-shaped shaft which rotatably supports the drum has a threaded portion thereon which cooperates with a threaded portion in one of the bosses to secure the shaft to the bosses.

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patent: 4165169 (1979-08-01), Miyashita et al.
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