The entire disclosure of Japanese patent Application No. 2020-171874, filed on Oct. 12, 2020, is incorporated herein by reference in its entirety.

BACKGROUND

Technological Field

The present disclosure relates to a cleaning device, a drum unit, and an image forming apparatus.

Description of the Related Art

In the related art, a cleaning device, which removes toner remaining on a surface of a photoreceptor, is known. For example, JP 2014-74776 A discloses a cleaning device including a cleaning brush that removes residual toner adhering to a photoreceptor drum, a collection roller that collects the residual toner from the cleaning brush, a metal blade that mechanically removes the residual toner from the collection roller, and a conveyance screw that conveys the residual toner scraped off from the collection roller. The conveyance screw is disposed below the cleaning brush and the collection roller.

In the cleaning device described in JP 2014-74776 A, there is a concern that the conveyance screw comes into contact with the cleaning brush or the collection roller due to vibration or the like during operation.

SUMMARY

An object of the present disclosure is to provide a cleaning device capable of preventing a conveyance member from coming into contact with a brush-like rotation body and a collection member, a drum unit, and an image forming apparatus.

To achieve the abovementioned object, according to an aspect of the present invention, a cleaning device reflecting one aspect of the present invention comprises: a brush-like rotation body that collects residual toner adhering to a photoreceptor from the photoreceptor and holds the residual toner; a collection member that is disposed so as to be in contact with the brush-like rotation body and collects the residual toner held by the brush-like rotation body from the brush-like rotation body; a blade member that scrapes off the residual toner collected by the collection member from the collection member; a conveyance member that is disposed below the brush-like rotation body and the collection member and conveys the residual toner scraped off from the collection member by the blade member; and a restriction part that is disposed above the conveyance member and restricts contact of the conveyance member with the brush-like rotation body and the collection member.

