Brother Kogyo Kabushiki-kaisha

Enao Yamada

Shougo Sato

Miho Ishida

Junichi Hashimoto

Yuwen Wang

Toshio Furukawa

Keigo Nakajima

Shota Iriyama

Fan Xu

Masahiko Hayakawa

Kazuma Hinoue

Kengo Yada

Hotaka Kakutani

Soun Kanada

Shunsuke Ishii

Shintaro Fukuoka

Koji Ogawa

Ayaka Komori

Masaki Ueji

Marika Ozaki

An image forming apparatus includes: a photosensitive drum; a magnetic roller; a transfer belt; a drum cleaning roller for collecting toner on the photosensitive drum and discharging collected toner to the photosensitive drum; a belt cleaner; a waste toner accommodating unit; and a controller configured to perform a printing operation for forming an image on a sheet and a cleaning operation for cleaning the drum cleaning roller. The controller is configured to perform: when performing the printing operation, collecting toner on the photosensitive drum using the drum cleaning roller; and when performing the cleaning operation, discharging the toner on the drum cleaning roller collected in the collecting to the photosensitive drum; transferring the toner on the photosensitive drum onto the transfer belt; and collecting the toner on the transfer belt using the belt cleaner so that the collected toner is accommodated in the waste toner accommodating unit.

Image forming apparatus configured to perform cleaning operation for cleaning drum cleaning roller configured to collect toner on photosensitive drum

An image forming apparatus includes: a main casing; a first cover; a drum cartridge; and a toner cartridge. The main casing has a first opening. The first cover is movable between: a first closed position in which the first cover closes the first opening; and a first open position in which the first opening is opened. The drum cartridge includes a photosensitive drum. The drum cartridge is attachable to and detachable from the main casing through the first opening in a state where the first cover is in the first open position. The toner cartridge is configured to accommodate toner therein. The toner cartridge is attachable to and detachable from the drum cartridge. The first cover has a second opening smaller than the first opening. The second opening allows the toner cartridge to pass therethrough but does not allow the drum cartridge to pass therethrough.

Image forming apparatus including cover having opening that allows toner cartridge to pass therethrough but does not allow drum cartridge to pass therethrough

A drum cartridge includes: a photosensitive drum rotatable about a drum axis extending in an axis direction; a drum cleaner including a cleaning member cleaning a circumferential surface of the photosensitive drum, and a cleaning housing accommodating transfer residual toner removed from the circumferential surface of the photosensitive drum by the cleaning member; a first drum side plate supporting a first end portion of the photosensitive drum; a second drum side plate located distant from the first drum side plate in the axis direction and supporting a second end portion of the photosensitive drum; a pipe located between the first drum side plate and the second drum side plate in the axis direction and extending in the axis direction; and a conveyor device conveying the transfer residual toner from the cleaning housing to the pipe.

Drum cartridge and image forming apparatus having residual toner conveying pipe

Growing community of inventors

Nagoya, Japan

Enao Yamada