US 12,461,481 B2
Image forming apparatus having cover to cover image forming units
Hiroki Takayama, Chiba (JP); and Yuki Tashiro, Chiba (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Sep. 24, 2024, as Appl. No. 18/895,143.
Application 18/895,143 is a continuation of application No. 18/186,598, filed on Mar. 20, 2023, granted, now 12,117,760.
Claims priority of application No. 2022-052238 (JP), filed on Mar. 28, 2022.
Prior Publication US 2025/0013186 A1, Jan. 9, 2025
Int. Cl. G03G 21/00 (2006.01); G03G 21/16 (2006.01); G03G 21/20 (2006.01)
CPC G03G 21/1633 (2013.01) [G03G 21/206 (2013.01); G03G 2221/1645 (2013.01)] 25 Claims
OG exemplary drawing
 
1. An image forming apparatus comprising:
a plurality of image forming units including a first image forming unit and a second image forming unit, the first image forming unit including at least a first photosensitive member, and the second image forming unit including at least a second photosensitive member;
a first cover configured to be opened and closed and forming part of an exterior of the image forming apparatus;
a second cover located between the first cover and the plurality of image forming units in a rotational axis direction of the first photosensitive member, the second cover being made of resin and covering the plurality of image forming units;
a first duct disposed on the second cover and configured to guide air sucked from outside of the image forming apparatus to the first image forming unit;
a second duct disposed on the second cover and configured to guide air sucked from the outside of the image forming apparatus to the second image forming unit;
a third cover configured to be attached, in an attachable and detachable manner, to the second cover to cover an opening of the second cover, at least part of the first image forming unit being insertable and extractable through the opening of the second cover;
a first air intake;
a second air intake;
a first fan configured to suck air into the first duct through the first air intake; and
a second fan configured to suck air into the second duct through the second air intake.