IMAGE FORMING APPARATUS CAPABLE OF EFFECTIVELY PREVENTING IMAGE DENSITY FLUCTUATION

摘要

An image forming apparatus includes an image forming unit including rotary members to form a toner image corresponding to image data, in which the image forming unit forms a toner pattern for detecting image density fluctuation; and an image forming condition determination controller to perform image forming processing to ultimately transfer the toner image onto a recording medium. In the image forming apparatus, the controller measures a periodic image density fluctuation occurring in a rotation cycle of the rotary members based on a detection result of a toner pattern; performs image forming condition determination processing to determine an image forming condition to reduce the image density fluctuation based on measured image density fluctuation data; and determines whether or not the image density fluctuation data measured multiple times satisfies a predetermined control termination condition.

主权项

1. An image forming apparatus comprising:
an image forming unit comprising rotary members, including an image carrier and a developer carrier, to form a toner image corresponding to image data, wherein the image forming unit forms a toner pattern for detecting image density fluctuation; and an image forming condition determination controller to perform image forming processing to ultimately transfer the toner image onto a recording medium, wherein the controller is configured to:
measure a periodic image density fluctuation occurring in a rotation cycle of the rotary members based on a detection result of a toner pattern;perform image forming condition determination processing to determine an image forming condition to reduce the image density fluctuation based on measured image density fluctuation data; anddetermine whether or not the image density fluctuation data measured multiple times satisfies a predetermined control termination condition,wherein, if the obtained result does not satisfy the predetermined control termination condition, the image forming processing is performed using the image forming condition determined by the image forming condition determination controller, and if the obtained result satisfies the predetermined control termination condition, the image forming processing is performed without using the image forming condition determined by the image forming condition determination controller.