US 12,366,821 B2
Drum cartridge including electrical contact surface movable relative to drum frame
Nao Itabashi, Nagoya (JP); and Naoya Kamimura, Ichinomiya (JP)
Assigned to BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed by BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed on May 23, 2024, as Appl. No. 18/672,427.
Application 18/672,427 is a continuation of application No. 18/366,360, filed on Aug. 7, 2023, granted, now 12,025,948.
Application 18/366,360 is a continuation of application No. 18/048,076, filed on Oct. 20, 2022, granted, now 11,762,331, issued on Sep. 19, 2023.
Application 18/048,076 is a continuation of application No. 17/465,924, filed on Sep. 3, 2021, granted, now 11,500,328, issued on Nov. 15, 2022.
Application 17/465,924 is a continuation of application No. 17/002,268, filed on Aug. 25, 2020, granted, now 11,112,756, issued on Sep. 7, 2021.
Claims priority of application No. 2019-158770 (JP), filed on Aug. 30, 2019.
Prior Publication US 2024/0319664 A1, Sep. 26, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G03G 21/18 (2006.01); G03G 15/00 (2006.01)
CPC G03G 21/1867 (2013.01) [G03G 15/751 (2013.01); G03G 15/80 (2013.01); G03G 2221/166 (2013.01); G03G 2221/1823 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A drum cartridge for use with a developing cartridge including a developing roller, the drum cartridge comprising:
a drum frame having a recessed portion in which the developing cartridge is configured to be received;
a photosensitive drum rotatable about an axis extending in a first direction; and
a memory having an electrical contact surface,
wherein the electrical contact surface is movable relative to the photosensitive drum.