Microfilm reader/printer

Details Microfilm reader/printer Microfilm reader/printer

G - Physics

03

B

341/41, 354/56,

G03B 21/134 (2006.01) G03B 21/14 (2006.01) G06K 17/00 (2006.01)

Patent

CA 1139865

MICROFILM READER/PRINTER Abstract of the Disclosure A microprocessor controlled microfilm reader/printer is arranged to transport a roll of film having all images contained thereon, in a distinctive format involving se- quentially recorded photographic areas. The reader/printer has an automatic call feature up, so that any given photo- graphic area may be selected and projected responsive to the push of a button, the operation of a rotary switch, or both. A special bar code printed along an edge of the film elimi- nates the need for precise control over a film transport synchronized with a code reading speed. The bar code is preferably read by an optical electronic sensor, which provides a film positioning input control signal to enable an accurate locating of a selected photographic area within a viewing area.

290105

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