Laser computer output microfilmer with electrical misalignment correction

Claim 1

In a laser computer output microfilmer including means for two dimensionally scanning an intensity modulated laser beam to generate a data character image on a recording medium and means for superimposing a projected format slide image over the data character image, means for correcting horizontal and vertical misalignments between the relative positions of the data character and format slide images, characterized by: (a) means for generating scan line synchronizing signals, (b) means for generating clock pulses in response to said synchronizing signals, (c) a first variable preset counter for counting said clock pulses, including means for presetting said counter, (d) means for initiating the data character image formation in response to said first counter reaching its preset value, (e) a second variable preset counter for counting said synchronizing signals, including means for presetting said second counter, and (f) means for initiating an effective scan line in response to said second counter reaching its preset value, whereby the data character image may be shifted horizontally and/or vertically with respect to the format slide image in a desired direction and by a desired amount by appropriately incrementing or decrementing the preset values of said first and second counters.