Patent ID: 11927908
Assignee: RICOH COMPANY, LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. An image forming apparatus comprising:
an image forming device configured to form a toner image;
an image bearer configured to bear the toner image formed by the image forming device;
a transferrer configured to transfer the toner image from the image bearer to a recording medium;
a cleaner configured to clean a surface of the image bearer; and
an adhesion amount detector facing the surface of the image bearer to detect a toner adhesion amount of the toner image,
the image forming device being configured to form, on the image bearer, a toner image pattern to be input to the cleaner without being transferred to the recording medium,
the toner image pattern being a belt-shaped pattern elongated in an orthogonal direction orthogonal to a traveling direction of the image bearer,
the toner image pattern having a greater amount of toner input to a portion of the cleaner corresponding to a position of the adhesion amount detector in the orthogonal direction than an amount of toner input to a portion of the cleaner not corresponding to the position of the adhesion amount detector in the orthogonal direction.