US 12,292,701 B2
Image forming apparatus
Hideshi Nishiyama, Owariasahi (JP)
Assigned to BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed by BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed on Feb. 20, 2024, as Appl. No. 18/581,691.
Application 18/581,691 is a continuation of application No. 17/930,108, filed on Sep. 7, 2022, granted, now 11,947,277.
Application 17/930,108 is a continuation of application No. 17/179,784, filed on Feb. 19, 2021, granted, now 11,467,512, issued on Oct. 11, 2022.
Application 17/179,784 is a continuation of application No. 16/784,589, filed on Feb. 7, 2020, granted, now 10,942,469, issued on Mar. 9, 2021.
Claims priority of application No. 2019-035417 (JP), filed on Feb. 28, 2019.
Prior Publication US 2024/0192622 A1, Jun. 13, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G03G 15/08 (2006.01); G03G 21/16 (2006.01)
CPC G03G 15/0806 (2013.01) [G03G 21/1647 (2013.01); G03G 21/1676 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An image forming apparatus comprising:
a main body casing having an opening and a slot extending from the opening toward an inside of the main body casing along a first direction, the main body casing including a cover movable between an open position in which the cover does not cover the opening and a closed position in which the cover covers the opening and when the cover is in the closed position, the main body casing having an inner surface positioned at an innermost of the slot;
a drum cartridge including a photosensitive drum rotatable about a first axis extending in the first direction, the drum cartridge being removably insertable into the slot through the opening in the first direction; and
a developing cartridge including a developing roller rotatable about a second axis extending in the first direction, the developing cartridge being removably insertable into the slot through the opening in the first direction,
wherein the main body casing includes a drum guide groove configured to guide movement of the drum cartridge, the drum guide groove extending in the first direction, and
wherein the drum guide groove has a tapered shape.