Systems and methods for determining printhead in a standby...

Details Systems and methods for determining printhead in a standby... Systems and methods for determining printhead in a standby...

2006-06-13

2006-06-13

Nguyen, Lamson (Department: 2861)

Incremental printing of symbolic information

Ink jet

Controller

C347S008000, C347S198000

Reexamination Certificate

active

07059702

ABSTRACT:
A system and method for determining proper positioning of the printhead as it travels between first and second positions by sampling an electrical resistance signal of a motor during tilting of the printhead, calculating an average of specified samples at a time, and comparing the calculated average to a predetermined threshold to determine whether the printhead is operating properly. Thus, the need for sensors to determine the positioning of the printhead is eliminated.

REFERENCES:
patent: 5806996 (1998-09-01), Leys et al.
patent: 5820275 (1998-10-01), Crawford et al.
patent: 6015205 (2000-01-01), Chambers et al.

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