Image forming apparatus capable of correcting control coefficient used to determine electrification bias

Abstract

In an image forming apparatus, an image bearing member bears an electrostatic image. An electrification device electrifies the image bearing member to a predetermined potential. An exposure device exposes the image bearing member electrified by the electrification device to an image. A potential detection device detects the potential of the image bearing member. A determination device performs calculation using a control coefficient for the potential detected by the potential detection device, and determines an electrification bias value. The determination device corrects the control coefficient to determine an electrification bias when the detected potential upon electrification at the electrification bias obtained by calculation falls outside a predetermined range.

Dependencies are inferred from the claim text.