0622202-A2 is referenced by 15 patents and cites 8 patents.

A process for start up of a thermal ink-jet printhead cartridge (C1, C2, C3, C4) includes a sequence of nozzle clearing procedures of increasing severity which are performed in sequence so long as some of the nozzles of the printhead fail to fire ink drops pursuant to ink firing pulses provided to the printhead or until all of the procedures have been performed.

Title
Themal ink jet printer with start-up algorithm.
Application Number
EP19940106217 19940421
Publication Number
0622202 (A2)
Application Date
April 21, 1994
Publication Date
November 2, 1994
Inventor
Card Steven R
US
Behrend Curt
US
Williams Irene
US
Davis Edward D
US
Stewart Lowell
US
Assignee
Hewlett Packard Co
US
IPC
B41J 02/17
B41J 02/175
B41J 02/165
B41J 02/175
B41J 02/165
View Original Source Download PDF