US 12,216,417 B2
Image forming apparatus and cartridge
Shougo Sato, Seto (JP)
Assigned to BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed by BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed on May 2, 2023, as Appl. No. 18/310,646.
Claims priority of application No. 2022-106715 (JP), filed on Jun. 30, 2022.
Prior Publication US 2024/0004328 A1, Jan. 4, 2024
Int. Cl. G03G 15/08 (2006.01)
CPC G03G 15/0887 (2013.01) [G03G 15/0865 (2013.01)] 22 Claims
OG exemplary drawing
 
1. An image forming apparatus comprising:
a main housing;
a photosensitive drum;
a development housing configured to contain toner;
a development roller configured to supply toner in the development housing to the photosensitive drum;
a container having an insertion opening configured such that a toner container is inserted therein, the toner container containing toner to be replenished to the development housing;
a drum cleaner configured to collect toner on a circumferential surface of the photosensitive drum, and
a return toner pipe configured to allow passage of return toner, the return toner being toner that returns from the photosensitive drum to the development housing, the return toner pipe being configured to return the toner collected by the drum cleaner to the development housing.