US 11,669,041 B2
Image forming apparatus
Shougo Sato, Seto (JP)
Assigned to BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed by BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed on Oct. 18, 2022, as Appl. No. 18/47,338.
Application 18/047,338 is a continuation of application No. 17/371,249, filed on Jul. 9, 2021, granted, now 11,526,121.
Application 17/371,249 is a continuation of application No. 16/892,416, filed on Jun. 4, 2020, granted, now 11,061,361, issued on Jul. 13, 2021.
Application 16/892,416 is a continuation of application No. 16/460,186, filed on Jul. 2, 2019, granted, now 10,705,479, issued on Jul. 7, 2020.
Claims priority of application No. 2018-156470 (JP), filed on Aug. 23, 2018.
Prior Publication US 2023/0063310 A1, Mar. 2, 2023
Int. Cl. G03G 21/18 (2006.01); G03G 21/12 (2006.01); G03G 21/10 (2006.01)
CPC G03G 21/18 (2013.01) [G03G 21/10 (2013.01); G03G 21/105 (2013.01); G03G 21/12 (2013.01); G03G 21/1803 (2013.01); G03G 21/1817 (2013.01); G03G 21/1821 (2013.01); G03G 21/1842 (2013.01); G03G 21/1846 (2013.01); G03G 21/1853 (2013.01); G03G 2221/183 (2013.01); G03G 2221/1846 (2013.01); G03G 2221/1884 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A process cartridge comprising:
a photosensitive drum configured to rotate about an axis extending in a first direction;
a first side frame and a second side frame arranged apart from each other in the first direction, the photosensitive drum being arranged between the first side frame and the second side frame;
a development unit comprising:
a development roller configured to supply toner to the photosensitive drum; and
an extension portion having a reception port,
the development roller being arranged between the first side frame and the second side frame;
a toner conveyer configured to convey toner to the extension portion, the toner conveyer having a supply port configured to supply the toner through the reception port to the extension portion; and
a seal member provided between the toner conveyer and the extension portion, the seal member being arranged to surround peripheries of the supply port and the reception port,
wherein the first side frame is arranged between the second side frame and a position at which the toner conveyer is coupled to the extension portion.