Patent · US Expired

Combined paper advance and ink ribbon feed system

US4376585A · kind A · utility

18Cited by

11References

11Claims

0Family size

Assignee

Mannesmann AG · DE

Inventors

Lorenz Fromme · Fellbach, DE
Wolfgang Hendrischk · Neu-Ulm, DE
Werner Rupp · Bischofswerda, DE

Key dates

Filing date	Apr 2, 1981
Grant date	Mar 15, 1983
Priority date	—
Expiry date	Apr 2, 2001

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41J29/38
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.