Deviation detection device, belt device, and image forming apparatus including same
AssigneeRicoh Company, Ltd.
InventorsTakahiro Konishi, Tomoaki Suga
Life of this patent
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Abstract
A deviation detection device to detect a deviation of a rotator includes a contact member disposed in contact with the rotator and configured to move, following a deviation of the rotator in a width direction of the rotator. The deviation detection device further includes a deviation detector configured to detect a direction of the deviation and a deviation amount of the rotator based on a displacement of the contact member, and a wear detector configured to detect a state in which an amount of wear of the contact member has reached a threshold.
Claims9
A deviation detection device to detect a deviation of a belt in an image forming apparatus to rotate, the deviation detection device comprising:
- a contact member disposed in contact with the belt in the image forming apparatus and configured to move following a deviation of the belt in the image forming apparatus in a width direction of the belt in the image forming apparatus;
- a deviation detector including a first light-emitting element and a first light-receiving element, the deviation detector configured to detect a direction of the deviation and a deviation amount of the belt in the image forming apparatus based on a displacement of the contact member;
- and
- a wear detector including a second light-emitting element and a second light-receiving element, the wear detector configured to detect a state in which an amount of wear of the contact member has reached a threshold.
Dependencies are inferred from the claim text.