Optical scanner and image forming device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Sep 9, 2014
Grant Date -
May 1, 2014
app pub date -
Nov 25, 2013
filing date -
Oct 24, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An optical scanner includes a plurality of automatic cleaning units which automatically cleans dust-proof glasses. The automatic cleaning units include screw shafts threadedly coupled to holding units that hold cleaning members. When the holding members are moved by rotationally driving the screw shafts of the automatic cleaning units at the same time, the height of the cleaning member of at least one of the automatic cleaning units with respect to the dust-proof glasses becomes different from the height of the cleaning members of the remaining automatic cleaning units with respect to the dust-proof glasses.
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