Dust and/or dirt detection in image reading apparatus having...

Details Dust and/or dirt detection in image reading apparatus having... Dust and/or dirt detection in image reading apparatus having...

2006-09-21

2010-06-22

Thompson, James A (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Data corruption, power interruption, or print prevention

C358S003260, C358S474000, C358S463000, C358S437000

Reexamination Certificate

active

07742180

ABSTRACT:
In image reading apparatus capable of performing a read-while-feed operation in which an original is read while being fed by an image sensor placed at a fixed position, presence/absence of dust and/or dirt on a platen is detected, and, in a case where dust and/or dirt are detected at all of a plurality of predetermined positions by said detector, the read-while-feed operation is inhibited and the presence of dust and/or dirt is notified to a user. When, removal of dust and/or dirt on the platen is detected in a state that the read-while-feed operation is inhibited, the read-while-feed operation is allowed.

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