Jet drop copying apparatus

Details Jet drop copying apparatus Jet drop copying apparatus

H - Electricity

04

N

101/96.0214

H04N 1/04 (2006.01) H04N 1/191 (2006.01) H04N 1/207 (2006.01)

Patent

CA 1089917

JET DROP COPYING APPARATUS Abstract Of The Disclosure A jet drop copying apparatus has an array of printing nozzles supported for axial movement over a copy paper mounted upon a rotating drum. Simultaneously therewith an optical scanning system scans a document positioned flat on a planar support surface and sweeps an image thereof across an array of photosensors arranged in correspondence with the array of printing nozzles. Output signals from the photosensors are supplied to a control unit which controls the printing operation of the nozzles. The control unit also controls the optical scanning for synchronism with the movement of the nozzle array relative to the copy paper. The nozzles are rather widely spaced, but their spacing (and likewise the photosensor spacing) is adjusted in accordance with the number thereof and with the nozzle movement speed so as to produce an interlaced solid printed copy. Optical distortion during scanning is avoided by provision of a double lens arrangement with a rotating mirror therebetween. -1-

298130

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