System for optically detecting and measuring release agent...

Details System for optically detecting and measuring release agent... System for optically detecting and measuring release agent...

2011-01-11

2011-01-11

Luu, Matthew (Department: 2861)

Incremental printing of symbolic information

Ink jet

Controller

C347S103000

Reexamination Certificate

active

07866782

ABSTRACT:
A system optically detects and measures release agent on a rotating image member in an ink jet printer. The system includes a collimated light source oriented to direct a collimated beam of light generated by the source towards a rotating image member, an image sensor for generating an image of a portion of the rotating image member from a portion of the collimated beam of light reflected by the rotating image member, an image differentiator for measuring a difference between a first image generated by the image sensor and a second image generated by the image sensor, and a release agent measurement generator that is coupled to the image differentiator to receive the difference between the two images and to generate a measurement of the release agent on the rotating image member.

REFERENCES:
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patent: 6263182 (2001-07-01), Baker et al.
patent: 6347197 (2002-02-01), Maul et al.
patent: 7123848 (2006-10-01), Clement et al.
patent: 2005/0110854 (2005-05-01), Roof
patent: 2007/0003302 (2007-01-01), Mizes
patent: 1681602 (2006-07-01), None
European Search Report, European Patent Office, Munich, DE, Jul. 20, 2009, 8 pages.

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