Printer jet detection method and apparatus

Details Printer jet detection method and apparatus Printer jet detection method and apparatus

2006-04-04

2006-04-04

Nguyen, Thinh (Department: 2861)

Incremental printing of symbolic information

Ink jet

Controller

C347S009000, C347S019000, C347S038000

Reexamination Certificate

active

07021732

ABSTRACT:
A method includes ejecting ink from a first set of one or more nozzles to form a first image pattern at least partially within an image field. The method likewise includes ejecting ink from a second set of one or more nozzles to form a second image pattern at least partially within the image field. The first image pattern and second image pattern form a composite pattern within the image field. Then, an optical detector obtains a measurement of an optical characteristic of the image field. The measurement may be compared with a reference optical characteristic for the composite pattern within the image field.

REFERENCES:
patent: 5389958 (1995-02-01), Bui et al.
patent: 5949452 (1999-09-01), Jones
patent: 6000776 (1999-12-01), Suzuki et al.
patent: 6113231 (2000-09-01), Burr et al.
patent: 6623095 (2003-09-01), Ward et al.
patent: 2003/0058295 (2003-03-01), Heiles et al.

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