Facsimile and static presentation processing – Facsimile – Picture signal generator
Reexamination Certificate
2007-12-12
2011-12-20
Worku, Negussie (Department: 2625)
Facsimile and static presentation processing
Facsimile
Picture signal generator
C358S480000, C358S496000, C358S501000, C399S110000
Reexamination Certificate
active
08081353
ABSTRACT:
A method for providing a visible reference marker on a scanning unit for orienting an item to be scanned or copied includes the steps of emitting a light from a light source, guiding the light to a scanning unit having a contact glass scanning surface, and redirecting the light to define an illuminated reference marker substantially adjacent to the contact glass. A reference marker assembly for accomplishing that method is provided, including a light source, a waveguide for guiding light emitted from the light source to a scanning unit having a contact glass, and a redirector for redirecting the light to define an illuminated reference marker adjacent to the contact glass, for orienting an item to be copied or scanned. The light source may be a light emitting diode, and the redirector may be a light diffuser for redirecting the collected light to define an illuminated reference marker adjacent to the contact glass.
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Cui Chengwu
Langrel Charles B.
Waugerman Allen W.
Lexmark International Inc.
Worku Negussie
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