Microfilming apparatus

Photocopying – Projection printing and copying cameras – Image transferred from individual documents to film strip

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Details

355 40, G03B 2770

Patent

active

048314170

ABSTRACT:
An apparatus including separate mechanisms for photographing documents under automatic exposure control and recording image data, such as blip marks and frame numbers, at the same time. Even when the document has been completely photographed, the photographing mechanism is prohibited from transporting the film until the image data is completely recorded. The photographing mechanism photographs the document with automatically controlled proper exposure time in accordance with the density of the document. The data recording mechansim is independent of the photographing mechanism to record the image data properly under a constant condition, irrespective of variations in the exposure time in conformity with the document density. When the image data has not been recorded despite the completion of photographing operation, transport of the film is prevented to avoid failure in image data recording.

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