Device for the electrophotographic manufacture of printing forms

Details Device for the electrophotographic manufacture of printing forms Device for the electrophotographic manufacture of printing forms

1985-11-14

1987-04-28

Grimley, Arthur T.

Photocopying

Including fiber optics

355 35H, 355 73, 406 88, G03G 1500

Patent

active

046609598

ABSTRACT:
Disclosed is a device for the electrophotographic manufacture of printing forms, comprising a loading table, an exposure table and a developing table arranged in the device one after the other in the transport direction A of printing plates. The loading table is pivotable and is equipped with spring suction devices, by means of which the uppermost printing plate can be removed from a plate magazine. After the printing plate has been removed, the loading table is swung into its horizontal position, a corona is moved over the loading table and the photoconductive layer of the printing plate is loaded to the required voltage. The printing plate is transported from the loading table to the exposure table and from the latter to the developing table by means of compressed air which forms a cushion underneath the printing plate. The printing plate is guided on the cushion in suspension from processing station to procesing station. For this purpose, at least two rows of air nozzles are arranged in the tables of the processing stations. The air nozzles extend at an angle inside the tables and are charged with compressed air. The loading table, at its narrow sides, is equipped with pivotable flaps. The exposure table, at its narrow sides, has fixed guide plates, whereas the developing table is equipped on all four sides with pivotable flaps and, moreover, has two additional rows of air nozzles which are arranged at right anges to the air nozzles which extend along each of the tables in the transport direction.

REFERENCES:
patent: 3617127 (1971-11-01), McDuff
patent: 4006984 (1977-02-01), Friese
patent: 4226526 (1980-10-01), Spence-Bate et al.
patent: 4334472 (1982-06-01), Back et al.
patent: 4371309 (1983-02-01), Principe et al.
patent: 4402592 (1983-09-01), Schoen et al.
patent: 4462678 (1984-07-01), Back
IBM Technical Disclosure Bulletin, vol. 21, No. 1, Jun. 1978, Gagne et al., "Device Air Transport System", pp. 84-85.

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