Rabin & Champagne, P.C.
Ink-jet printing apparatus
 In the ink-jet printing apparatus, each nozzle is selected so that time differences of drive timings of adjacent nozzles become random in the entire ink-jet head. Thus, texture noise can be prevented and the picture quality can be improved. In this apparatus, when the time differences of drive timings of adjacent nozzles are 2T, T, 2T, 3T, and so forth, four nozzles in sixteen nozzles set to be enable in one scanning operation are selected in such a manner that time differences of drive timings of adjacent nozzles become random in the entire ink-jet head. 
Mutoh Industries, Ltd.
G B B
G06K B41J B41J
inventional inventional additional
Akitomo Isao
Koujiyama Karasawa