Method and apparatus with vernier technique for registration...

Details Method and apparatus with vernier technique for registration... Method and apparatus with vernier technique for registration...

2007-09-04

2007-09-04

Meier, Stephen (Department: 2853)

Incremental printing of symbolic information

Ink jet

Controller

C347S042000, C347S043000

Reexamination Certificate

active

11013704

ABSTRACT:
Alignment of an ejector module in a printhead is achieved along a lateral direction by arranging first and second partially overlapping pluralities of nozzles, determining an alignment pair between first and second nozzles within their respective pluralities, and assigning the alignment pair as boundaries for print actuation. The first and second ejector modules are disposed in a printhead array along a lateral direction and include first and second nozzles eject fluid on command. The first nozzles are disposed with a first spacing therebetween in the first ejector module. The second nozzles at one end of the second ejector module that overlap the first nozzles are disposed with a second spacing that differs from the first spacing. An alignment pair between first and second nozzles of their respective pluralities is determined to minimize an alignment spacing between each other as compared to remaining nozzles. The first and second alignment nozzles are assigned as first and second boundaries for print actuation.

REFERENCES:
patent: 5801727 (1998-09-01), Torpey
patent: 5809375 (1998-09-01), Owens, Jr. et al.
patent: 6705697 (2004-03-01), Audi et al.
patent: 2002/0140954 (2002-10-01), Silverbrook et al.
patent: 2005/0122354 (2005-06-01), Yamane et al.

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