Belt device and image forming apparatus incorporating same
AssigneeRicoh Company, Ltd.
InventorTakahiro Konishi
Life of this patent
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Abstract
A belt device includes a belt assembly, a pressing force adjuster, and an optical sensor. The belt assembly includes multiple rollers and a belt stretched by the multiple rollers and is rotatable about a rotation axis of one of the multiple rollers. The pressing force adjuster rotates the belt assembly about the rotation axis and adjusts a contact pressure of the belt pressed against an object. The optical sensor is disposed opposite to the one of the multiple rollers, and a position of the optical sensor relative to the rotation axis is fixed while the belt assembly is rotated by the pressing force adjuster.
Claims8
A belt device comprising:
- a belt assembly including:
- multiple rollers;
- and
- a belt stretched by the multiple rollers,
- the belt assembly configured to be rotatable about a rotation axis of one of the multiple rollers;
- a pressing force adjuster configured to:
- rotate the belt assembly about the rotation axis;
- and
- adjust a contact pressure of the belt against an object;
- and
- an optical sensor disposed opposite to the one of the multiple rollers,
- wherein a position of the optical sensor relative to the rotation axis is fixed while the belt assembly is rotated by the pressing force adjuster.
Dependencies are inferred from the claim text.