EP 0945272 A3 20000126 - 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)
[origin: EP0945272A2] 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 (search report)
- [A] EP 0645244 A1 19950329 - CANON KK [JP]
- [AP] EP 0887190 A2 19981230 - SEIKO EPSON CORP [JP]
- [AP] EP 0869006 A2 19981007 - SEIKO EPSON CORP [JP]
- [A] PATENT ABSTRACTS OF JAPAN vol. 1995, no. 3 28 April 1995 (1995-04-28)
- [A] PATENT ABSTRACTS OF JAPAN vol. 14, no. 563 (M - 1058) 14 December 1990 (1990-12-14)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 99106319 A 19990326