The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 27, 1985
Filed:
May. 23, 1983
David B Durkee, Arlington Heights, IL (US);
Alan J Liebman, Skokie, IL (US);
AT&T Teletype Corporation, Skokie, IL (US);
Abstract
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 starting position; and thereafter, if required, the drum is wiped clean in preparation for receiving the next page of information.