Method of media type differentiation in an imaging apparatus

Radiant energy – Photocells; circuits and apparatus – With circuit for evaluating a web – strand – strip – or sheet

Reexamination Certificate

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Details

C250S559390, C356S612000, C356S448000, C347S106000, C347S016000, C347S019000

Reexamination Certificate

active

06998628

ABSTRACT:
A method of media type differentiation includes the steps of providing a media sensor including a specular detector that provides a specular signal output having a signal level related to an amount of the reflected specular light received; providing a highly reflective surface positioned to face the media sensor; interposing a print media sheet between the media sensor and the highly reflective surface; using the media sensor to measure a first amount of the reflected specular light and determining a first signal level of the specular signal output of the specular detector; and using the first signal level to differentiate the print media sheet as being one of a transparency media sheet or a high glossy media sheet.

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