EP 0216176 B1 19881117 - ARRANGEMENT OF OUTLET ORIFICES OF A PRINT HEAD IN A MULTICOLOUR INK PRINTER
Title (en)
ARRANGEMENT OF OUTLET ORIFICES OF A PRINT HEAD IN A MULTICOLOUR INK PRINTER
Publication
Application
Priority
DE 3531097 A 19850830
Abstract (en)
[origin: US4728968A] An arrangement of discharge openings in a printhead of a multi-color ink printer includes n discharge openings for ink droplets of a black color formed in a first vertical row and m discharge openings in each row for ink droplets of further fundamental colors forming further vertical rows. The discharge openings of each row have a spacing "a" and after a first pass of the write head across a recording medium, the recording medium is moved relative to the write head by at least half a print line height, or by half the spacing "a" of the discharge openings. The number of discharge openings n of the first row and the spacing "a" is selected so that characters can be represented in draft quality for a single pass of the write head, the characters being represented in near-letter quality by multiple passes of the write head.
IPC 1-7
IPC 8 full level
B41J 2/21 (2006.01); B41J 2/045 (2006.01); B41J 2/055 (2006.01); B41J 2/145 (2006.01); B41J 2/52 (2006.01)
CPC (source: EP US)
B41J 2/145 (2013.01 - EP US); B41J 2/52 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0216176 A1 19870401; EP 0216176 B1 19881117; DE 3661177 D1 19881222; JP S6256151 A 19870311; US 4728968 A 19880301
DOCDB simple family (application)
EP 86111831 A 19860827; DE 3661177 T 19860827; JP 20189086 A 19860829; US 88682986 A 19860718