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:
Mar. 15, 1983
Filed:
Apr. 02, 1981
Applicant:
Inventors:
Assignee:
Mannesmann Aktiengesellschaft, Dusseldorf, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J / ; B41J / ; B41J / ;
U.S. Cl.
CPC ...
400185 ; 400225 ; 400233 ; 4003141 ; 400322 ; 400568 ;
Abstract
A matrix printer, having a movable print head, a paper feed and advance mechanism and an ink ribbon system, is driven by two motors; one for the print head and one for paper feeding and ribbon movement. This second motor is a reversible one and drives the paper advance when rotating in one direction and the ink ribbon when rotating in the opposite direction. Speed control for the paper feed phase is derived from a cam on the input shaft for the paper advance. A reset mechanism for that shaft is also included.