Photocopying – Projection printing and copying cameras – With developing
Patent
1988-10-11
1990-09-11
Gellner, Michael L.
Photocopying
Projection printing and copying cameras
With developing
355 32, 355 75, 355317, G03B 2732
Patent
active
049566628
ABSTRACT:
In forming a color picture image on a photosensitive recording medium by exposing through a masking master plate, the plate is conveyed by a conveyor belt into an exposure device where the plate must be registered in a specified position to avoid a color shift in the image formed on the photosensitive recording medium. A positional error or deviation of the plate is detected by reading out a location mark on the plate by a plurality of sensors. According to the outputs from the sensors, the conveyor belt is moved in a longitudinal path by one or two motors to correct a longitudinal deviation, and two longitudinally spaced portions of a belt support unit are moved, in a direction perpendicular to the longitudinal path, independently and respectively by other two motors to correct a transverse deviation and/or a skew.
REFERENCES:
patent: 4875074 (1989-10-01), Sangyoji et al.
Hattori Tomoaki
Kawano Osamu
Sakai Toshio
Tanabe Kazunori
Brother Kogyo Kabushiki Kaisha
Dang Khanh
Gellner Michael L.
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