Method for measuring a gap between an intermediate imaging...

Details Method for measuring a gap between an intermediate imaging... Method for measuring a gap between an intermediate imaging...

2011-04-19

2011-04-19

Martin, Laura E (Department: 2853)

Incremental printing of symbolic information

Ink jet

Controller

Reexamination Certificate

active

07926892

ABSTRACT:
A method uses temperature measurements for a print head and an imaging member to identify a distance between a print head and an imaging member and a heat transfer function. The method includes heating an imaging member to a predetermined imaging member temperature, activating a heat source to heat a print head to a predetermined print head temperature while the print head is at a non-imaging position with reference to the imaging member, moving the heated print head to a print position with reference to the imaging member, the print position being closer to the imaging member than the non-imaging position, deactivating the heat source, measuring a first temperature for the print head in response to a first time period expiring, and identifying a distance between the print head in the print position and the imaging member from the temperature measured for the print head, the predetermined imaging member temperature, and a difference between the predetermined print head temperature and the temperature measured for the print head.

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