EP 0767064 B1 20010516 - Device for monitoring the operation of an inkjet printinghead
Title (en)
Device for monitoring the operation of an inkjet printinghead
Title (de)
Anordnung zur Überwachung der Funktion eines Tintendruckkopfes
Title (fr)
Système de surveillance du fonctionnement d'une tête d'impression à jet d'encre
Publication
Application
Priority
DE 19537161 A 19951006
Abstract (en)
[origin: DE19537161C1] The system has a control circuit 5 that delivers command signals to the print head 1. The system has a sensor head 2 with at least two electrodes 21 that contact the printed surface of the paper 4. The electrical characteristics, e.g. conductivity, dielectric constant, vary dependent upon the nature of the deposited ink and is a measure of the condition of the ink jet head. The sensor is coupled to a processing circuit 3 that determines when a head cleaning cycle should be initiated.
IPC 1-7
IPC 8 full level
B41J 2/045 (2006.01); B41J 2/05 (2006.01); B41J 2/12 (2006.01); B41J 2/125 (2006.01); B41J 2/165 (2006.01); B41J 2/195 (2006.01); B41J 29/17 (2006.01)
CPC (source: EP US)
B41J 2/0451 (2013.01 - EP US); B41J 2/04558 (2013.01 - EP US); B41J 2/0458 (2013.01 - EP US); B41J 2/04581 (2013.01 - EP US); B41J 2/125 (2013.01 - EP US); B41J 29/17 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB IT LI
DOCDB simple family (publication)
DE 19537161 C1 19961219; DE 59606900 D1 20010621; EP 0767064 A2 19970409; EP 0767064 A3 19980916; EP 0767064 B1 20010516; US 5771051 A 19980623
DOCDB simple family (application)
DE 19537161 A 19951006; DE 59606900 T 19960914; EP 96250201 A 19960914; US 72028796 A 19960926