Global Patent Index - EP 0945272 A3

EP 0945272 A3 2000-01-26 - 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

EP 0945272 A3 (EN)

Application

EP 99106319 A

Priority

JP 2824898 D

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

B41J 2/175

IPC 8 full level

B41J 2/175 (2006.01)

CPC

B41J 2/17523 (2013.01); B41J 2/17563 (2013.01)

Citation (search report)

DCS

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family

EP 0945272 A2 19990929; EP 0945272 A3 20000126