US 11,892,798 B2
Image forming apparatus capable of making toner cartridge completely attached to drum cartridge during attachment of drum cartridge to housing
Ryuji Noda, Toyokawa (JP); and Keita Shimizu, Nagoya (JP)
Assigned to BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed by BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed on Dec. 20, 2022, as Appl. No. 18/068,656.
Claims priority of application No. 2021-209000 (JP), filed on Dec. 23, 2021.
Prior Publication US 2023/0205131 A1, Jun. 29, 2023
Int. Cl. G03G 21/16 (2006.01); G03G 21/18 (2006.01)
CPC G03G 21/1885 (2013.01) [G03G 21/1676 (2013.01); G03G 21/1821 (2013.01); G03G 2221/1823 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An image forming apparatus comprising:
a housing comprising a side wall positioned at one end portion of the housing in a first direction;
a drum cartridge attachable to the housing, the drum cartridge comprising:
a photosensitive drum rotatable about a drum axis extending in the first direction; and
a drum frame;
a toner cartridge attachable to the drum cartridge, the toner cartridge comprising:
a toner casing configured to accommodate toner therein;
a toner memory;
a memory holder holding the toner memory; and
a memory holder cover movably holding the memory holder, the memory holder cover having a protrusion protruding in a direction crossing the first direction; and
a contacting portion positioned at the side wall of the housing, the protrusion being configured to contact the contacting portion,
wherein, in a case where the drum cartridge is to be attached to the housing while the toner cartridge is at a lifted-up position relative to the drum frame, the protrusion is configured to contact the contacting portion to move the toner cartridge from the lifted-up position to an attachment position where the toner cartridge is fully attached to the drum frame, the toner cartridge being lifted up from the drum frame at the lifted-up position rather than at the attachment position.