Sensor unit and image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorHirotoshi Tajima
Life of this patent
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Abstract
A sensor unit detachably mounted in a main assembly of a image forming apparatus includes a sensor for detecting a detection object on a surface of a movable member, the sensor having a detecting surface positioned to the surface of the movable member at least when the sensor detects the detection object; a casing portion accommodating the sensor; an air feeding unit, provided in the casing portion, for to taking air in through an inlet portion formed by the casing; and a duct for feeding the air discharged from the air feeding unit, to between the detecting surface and the surface of the movable member.
Claims13
A sensor unit detachably mounted in a main assembly of an image forming apparatus, said sensor unit comprising:
- a sensor configured to detect a detection object on a surface of a movable member, said sensor having a detecting surface positioned to the surface of said movable member at least when said sensor detects the detection object;
- a casing portion accommodating said sensor;
- an air feeding unit provided in said casing portion and configured to take air in through an inlet portion formed by said casing;
- and
- a duct configured to feed the air discharged from said air feeding unit, to between the surface of the movable member.
Dependencies are inferred from the claim text.