Patent · US Expired

Method for activating and for driving printing elements

US5242231A · kind A · utility

2Cited by

1References

23Claims

0Family size

Assignee

Mannesmann AG · DE

Inventors

Manfred Lehmann · Cologne, DE
Stefan Scherdel · Hersbruck, DE

Key dates

Filing date	Feb 4, 1992
Grant date	Sep 7, 1993
Priority date	—
Expiry date	Feb 4, 2012

Classification

Technology area (CPC G)Physics
CPC primaryG06K2215/0074
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

The invention relates to a process for driving printing elements of a dot matrix printer in which the matrix dots to be printed are to be thinned out without any thin lines, in particular steeply inclined thin lines, being lost. To this end, before thinning out each matrix dot to be printed is associated with another matrix dot disposed on a nearest neighbor grid point in a certain direction of addition. After thinning out, the respective characters or images are printed sufficiently well and clearly. The process is intended for use in dot matrix printers.

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