Patent · US Expired

Device for lifting the printing head off the platen

US4420269A · kind A · utility

28Cited by

5References

1Claims

0Family size

Assignee

Triumph-Adler A.G. fur Buro- und Informationstechnik · DE

Inventors

Rolf Ackermann · Hanau, DE
Friedrich Jung · Aachen, DE
Egon Mauer · Fürth, DE
Hermann Rupertinger · Oberasbach, DE

Key dates

Filing date	Feb 11, 1982
Grant date	Dec 13, 1983
Priority date	—
Expiry date	Feb 11, 2002

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41J25/316
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A printer having a carriage guided for movement along a platen and supporting a wire matrix printing element includes means for changing the distance between the printing element and the platen an amount to facilitate paper feeding and an additional amount for paper insertion. The means of changing the distance between printing element and platen includes an electric motor driven in accordance with a stored program which determines motor acceleration characteristics.

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