Microfiche scanner module

摘要

The microfiche scanner module constitutes a specially designed modular unit capable of being substituted for a normal microfilm cartridge mechanism in a reader/printer projector to thereby enable the printing and displaying of data information stored on microfiche without requiring any major alterations in the reader/printer projector. The scanner unit includes a frame supporting a carriage for movement in a fore and aft direction, the carriage in turn supporting a film platen for movement in a left and right direction. A microfiche is positioned on the film platen between the normally provided light source and projection lens in the reader/printer projector. Movement of the carriage in a forward direction will scan one column of the microfiche after which the carriage is retracted and shifted to the right so that a second column can be scanned, the process being repeated until all of the information on the microfiche is printed in the printer. The movement of the carriage in a forward direction in the printing process of each column is controlled by the print paper moving mechanism in the projector so that proper image positioning for printing is assured.