EP 0082336 A2 19830629 - Selective density printing using dot matrix print heads in fixed spatial relation.
Title (en)
Selective density printing using dot matrix print heads in fixed spatial relation.
Title (de)
Drucken mit wählbarer Dichte mittels in einem festen räumlichen Verhältnis stehenden Punktmatrixdruckköpfen.
Title (fr)
Impression à densité sélective par têtes d'impression matricielles par points à rapport spatial fixe.
Publication
Application
Priority
US 33289881 A 19811221
Abstract (en)
The dot matrix printer comprises a plurality of print heads with each print head printing a portion of the line. In order to obtain quality print, alternate print head (54) are horizontally aligned with respect to one another so that the dots of one of the two alternate print heads prints dots between previously printed dots of the other of the alternate print heads. The heads would be controlled to print over two portions of the line whereby quality printed dot matrix characters would result.
IPC 1-7
IPC 8 full level
B41J 2/255 (2006.01); B41J 2/515 (2006.01); B41J 3/54 (2006.01); G06K 15/10 (2006.01)
CPC (source: EP)
B41J 2/515 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0082336 A2 19830629; EP 0082336 A3 19850821; EP 0082336 B1 19880713; CA 1191390 A 19850806; DE 3278761 D1 19880818; JP S58110266 A 19830630; JP S6311153 B2 19880311
DOCDB simple family (application)
EP 82110825 A 19821123; CA 417174 A 19821207; DE 3278761 T 19821123; JP 21479282 A 19821209