EP 0945272 A2 19990929 - Print head for an ink jet printer
Title (en)
Print head for an ink jet printer
Title (de)
Druckkopf für einen Tintenstrahldrucker
Title (fr)
Tête d'impression pour une imprimante à jet d'encre
Publication
Application
Priority
JP 2824898 D 19980327
Abstract (en)
A print head for an ink jet printer of the present invention includes a plurality of nozzles (6) for ejecting ink, an ink passage (3a,3,3b,5) fluidly communicated to the nozzles (6), and a filter (4) disposed in the ink passage (3a,3,3b,5). The ink passage (3a,3,3b,5) has a hydrophobic wall (9) upstream of the filter (4) and a hydrophilic wall (10) downstream of the filter. The print head is capable of reducing the deposition of bubbles on a nozzle portion and thereby insuring desirable printing free from defective ink ejection. <IMAGE>
IPC 1-7
IPC 8 full level
B41J 2/175 (2006.01)
CPC (source: EP)
B41J 2/17523 (2013.01); B41J 2/17563 (2013.01)
Citation (applicant)
- JP H07276629 A 19951024 - FUJI ELECTRIC CO LTD
- JP H07290714 A 19951107 - SEIKOSHA KK
- JP H04173345 A 19920622 - SEIKO EPSON CORP
- JP H05345419 A 19931227 - SHARP KK
- JP H0640040 A 19940215 - CITIZEN WATCH CO LTD
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
DOCDB simple family (application)
EP 99106319 A 19990326