Ink jet printer

Details Ink jet printer Ink jet printer

B - Operations, Transporting

41

J

101/96.0212

B41J 2/155 (2006.01) B41J 2/005 (2006.01) B41J 11/04 (2006.01) B41J 29/17 (2006.01)

Patent

CA 1222162

- 1 - ABSTRACT OF THE DISCLOSURE An ink jet printer utilizing a smooth surfaced transfer drum is shown as an illustrative embodiment of the invention. The transfer drum and the print head assembly are mounted between a pair of side plates (only one of which is shown in the drawing). A print head assembly, which comprises a number of ink jet nozzles, is also mounted between the side plates. The print head assembly is spaced apart from the drum and the nozzles thereof are spaced at equal distances along a line which is parallel to the axis of the drum. The print head assembly is movable in fine steps from left to right so that on successive rotations of the drum each nozzle is directed to a new track of a succession of tracks. After all tracks of the transfer drum have been served by a nozzle assembly, a printing medium, e.g., paper is brought in rolling contact with the drum to transfer the indicia on the drum to the printing medium while the print head assembly is returned to its start- ing position; and thereafter, if required, the drum is wiped clean in preparation for receiving the next page of information.

445897

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