IMAGE FORMING APPARATUS

摘要

An image forming apparatus includes a fixing unit including a roller, a heating rotary member heating the roller, and a backup member forming a nip portion, a temperature detection unit detecting a temperature of the heating rotary member, and a control unit for controlling power so that the detected temperature is maintained at a target temperature, wherein a print job includes a first step in which the unfixed toner image is formed on the recording material, a second step in which fixing processing is executed, and a third step in which the fixing unit is cleaned, and wherein the third step is executed following the second step, and in the third step, while the target temperature is set higher than the target temperature in the second step, the roller and the heating rotary member are rotated in a state where no recording material is present at the nip portion.

主权项

1. An image forming apparatus for forming a toner image on a recording material, the image forming apparatus comprising:
an image forming unit configured to form an unfixed toner image on the recording material; a fixing unit configured to heat the recording material on which the unfixed toner image is formed while conveying the recording material at a nip portion to fix the unfixed toner image on the recording material, the fixing unit including a roller, a heating rotary member configured to be in contact with an outer surface of the roller to heat the roller, and a backup member configured to be in contact with a region of the outer surface of the roller to form the nip portion, the region being different from a region with which the heating rotary member is brought into contact; a temperature detection unit configured to detect a temperature of the heating rotary member; and a control unit configured to control power to be supplied to the heating rotary member so that the temperature detected by the temperature detection unit is maintained at a target temperature, wherein a print job includes a first step in which the unfixed toner image is formed on the recording material, a second step in which fixing processing is executed, and a third step in which the fixing unit is cleaned, and wherein the third step is executed following the second step, and in the third step, while the target temperature is set higher than the target temperature in the second step, the roller and the heating rotary member are rotated in a state where no recording material is present at the nip portion.