Image forming apparatus including processes executed after image formation and before cartridge removal

Patent metadata

Field	Value
Publication number	US-9519263-B2
Application number	US-201514957136-A
Country	US
Kind code	B2
Filing date	Dec 2, 2015
Priority date	Dec 5, 2014
Publication date	Dec 13, 2016
Grant date	Dec 13, 2016

Abstract

An image forming apparatus includes a cartridge detachably attachable to the image forming apparatus, the cartridge including an image bearing member and a cleaning member which abuts against the image bearing member to remove remaining developer on the image bearing member; an inputting portion into which information for detaching the cartridge from the image forming apparatus is inputted; and an execution portion capable of executing, after an operation of forming an image on a recording material is finished, a first operation of rotating the image bearing member in a direction reverse to a rotation direction of the image bearing member and a second operation of rotating the image bearing member in the rotation direction of the image bearing member when the information is inputted to the inputting portion.

First claim

What is claimed is:

1. An image forming apparatus comprising:
a cartridge detachably attachable to the image forming apparatus, the cartridge including an image bearing member and a cleaning member which abuts against the image bearing member to remove remaining toner on the image bearing member after a toner image formed on the image bearing member is transferred to an intermediate transfer member or a recording material;
an inputting portion into which information for detaching the cartridge from the image forming apparatus is inputted; and
an execution portion capable of executing a first operation of rotating the image bearing member in a direction reverse to a rotation direction of the image bearing member after an operation of forming an image is finished and a second operation of rotating the image bearing member in the rotation direction of the image bearing member when the information is inputted to the inputting portion.

2. The image forming apparatus according to claim 1 ,
further comprising a transfer portion which transfers a toner image on a surface of the image bearing member to the intermediate transfer member or the recording material, wherein
the execution portion executes the second operation such that a movement amount of the image bearing member in the second operation is greater than a distance on a peripheral face of the image bearing member between a transfer facing position which faces the transfer portion and a cleaning facing position which faces the cleaning portion.

3. The image forming apparatus according to claim 2 ,
wherein the second operation is executed after the execution portion stops rotation of the image bearing member and separates the image bearing member from the transfer portion.

4. The image forming apparatus according to claim 1 ,
further comprising a transfer portion which transfers a toner image on a surface of the image bearing member to the intermediate transfer member or the recording material, wherein
the cartridge includes a charging portion which uniformly charges the surface of the image bearing member and a development portion which develops an electrostatic image on the surface of the image bearing member with a toner to form a toner image, and
the execution portion executes the first operation such that a movement of the image bearing member in the first operation is less than at least one of a first distance on a peripheral face of the image bearing member between a transfer facing position which faces the transfer portion and a cleaning facing position which faces the cleaning portion or a second distance on the peripheral face of the image bearing member between a charging facing position which faces the charging portion and a development facing position which faces the development portion.

Assignees

• Canon Kk

Inventors

• Tomine Jun

Classifications

• G03G15/55 Primary

  Self-diagnostics; Malfunction or lifetime display · CPC title

• G03G21/1889

  for auto-setting of process parameters, lifetime, usage · CPC title

• G03G21/169 Primary

  for the cleaning unit · CPC title

• G03G21/1878 Primary

  Electronically readable memory · CPC title