G - Physics – 03 – G
Patent
G - Physics
03
G
164/111, 314/39,
G03G 15/22 (2006.01) B26D 5/34 (2006.01) B26D 7/26 (2006.01) G03B 21/11 (2006.01) G03G 15/26 (2006.01)
Patent
CA 1037104
ABSTRACT OF THE DISCLOSURE An improved microfiche reader-printer includes an electro-mechanical control mechanism, roll paper storage and feed mechanism, paper cutter and a corona paper charger unit in the upper portion of the machine. Disposed in the lower portion of the machine are a paper developer, dryer and dis- charge chute, a light source, microfiche carrier and an opti- cal lens system. The optical system includes two moveably disposed mirrors selectively operable to project one selected fiche image either forwardly onto a viewing screen or rear- wardly to an exposure station where a selected size paper is momentarily retained to permit exposure. The control mech- anism functions to effect sequential operation of each of the machine elements whereby a selected fiche image is read and printed. The paper cutter includes a unique cutting bar mounting arrangement which includes means for allowing pivot- able movement at one end and horizontal movement only at the other end of the cutting bar to maintain it in contact with a rotary blade cam surface to provide proper cutting blade- cutting bar overlap notwithstanding external torsional forces applied to the paper cutting mechanism. The corona paper charging unit includes unique corona wire support means affording a corona structure of simple construction while assuring proper corona wire tension and insulation.
212025
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