EP 1095776 A1 20010502 - Improved ultrasonic cleaning system in ink jet printing systems
Title (en)
Improved ultrasonic cleaning system in ink jet printing systems
Title (de)
Verbessertes Ultraschallreinigungssystem für Tintenstrahldrucksysteme
Title (fr)
Système de nettoyage à ultrason amélioré dans un système d'impression à jet d'encre
Publication
Application
Priority
US 43072199 A 19991029
Abstract (en)
The efficiency of ultrasonic cleaning of a printhead is improved by sweeping the stimulation drive frequency. The cleaning frequency is swept at a constant drive amplitude. The drive amplitude, lower frequency limit, and upper frequency limit are stored in the printhead memory. When the printhead is in an ultrasonic cleaning state, as determined by the state table, the print station varies the frequency at a fixed rate. The drive amplitude is kept constant during the ultrasonic cleaning state. <IMAGE>
IPC 1-7
IPC 8 full level
B41J 2/165 (2006.01); B41J 2/17 (2006.01); B41J 2/175 (2006.01)
CPC (source: EP)
B41J 2/16552 (2013.01); B41J 2/1714 (2013.01); B41J 2/185 (2013.01); B41J 2002/16567 (2013.01)
Citation (applicant)
- US 4563688 A 19860107 - BRAUN HILARION [US]
- US 4600928 A 19860715 - BRAUN HILARION [US], et al
Citation (search report)
- [DA] US 4563688 A 19860107 - BRAUN HILARION [US]
- [DA] US 4600928 A 19860715 - BRAUN HILARION [US], et al
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1095776 A1 20010502; EP 1095776 B1 20061004; CA 2323820 A1 20010429; DE 60031065 D1 20061116; DE 60031065 T2 20070516; JP 2001158109 A 20010612
DOCDB simple family (application)
EP 00309006 A 20001013; CA 2323820 A 20001018; DE 60031065 T 20001013; JP 2000330266 A 20001030