Patent ID: 9459551
Filing Date: 2016-10-04
CPC Classification: G03G

Claim Text:
1. An image forming apparatus forming an image on a recording medium, the image forming apparatus comprising: a photosensitive member configured to be rotated; an exposure device configured to expose the photosensitive member to light to form an electrostatic latent image on the photosensitive member; a detection device to which a voltage is applied; a measurement device configured to measure a current flowing to the detection device; and a control unit configured to execute a detection mode in which an electrostatic latent image is formed on the photosensitive member and the measurement device detects a change of the current when the electrostatic latent image reaches a detecting area facing the detection device, wherein, in the detection mode, the control unit causes a potential difference between the electrostatic latent image and the detection device to be smaller as a layer thickness of a photosensitive layer of the photosensitive member is more reduced.