Exposure device for platemaking apparatus

Details Exposure device for platemaking apparatus Exposure device for platemaking apparatus

1985-05-09

1986-07-29

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Identifying, composing, or selecting

355 51, 355 45, 355 74, G03B 2752, G03B 2770

Patent

active

046028668

ABSTRACT:
An exposure device for a platemaking apparatus has: a plate material feed unit consisting of a suction mechanism for feeding and stopping a plate material on an exposure unit, conveyor belts, drive motors and the like; two shielding curtains respectively rolled at two ends of the exposure unit and selectively extended on the exposure unit; shielding curtain drive units for independently driving the two shielding curtains; a setting unit for setting exposure conditions of a document image to be formed on the plate material; and a control unit for controlling the motors of the plate material feed unit and the shielding curtain drive units in a given relationship in response to the conditions set in the setting means, wherein an identical document image is formed on different positions of a single plate material a plurality of times.

REFERENCES:
patent: 3689149 (1972-09-01), Livingood

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