US 11,841,665 B2
Image forming apparatus
Kazuhisa Koizumi, Chiba (JP); Fumitaka Sobue, Chiba (JP); and Yosuke Hata, Chiba (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Nov. 17, 2022, as Appl. No. 18/056,657.
Claims priority of application No. 2021-192913 (JP), filed on Nov. 29, 2021.
Prior Publication US 2023/0168619 A1, Jun. 1, 2023
Int. Cl. G03G 15/00 (2006.01); B41J 11/00 (2006.01)
CPC G03G 15/70 (2013.01) [B41J 11/006 (2013.01)] 4 Claims
OG exemplary drawing
 
1. An image forming apparatus to form an image on a recording medium, the image forming apparatus comprising:
a connector configured to be connected to a power source;
a conveyance unit configured to be pulled out from the image forming apparatus; and
a controller,
wherein the conveyance unit includes:
a conveyance roller configured to convey the recording medium,
a conveyance path configured to guide the recording medium conveyed by the conveyance roller,
a first sensor provided at a first position in a conveyance direction in which the recording medium is conveyed,
a first light source provided in correspondence with the first sensor,
a second sensor provided at a second position in the conveyance direction,
a second light source provided in correspondence with the second sensor, and
a capacitor configured to reduce fluctuation of a voltage supplied from the power source via the connector to a motor configured to drive the conveyance roller,
wherein the controller is configured to perform operations including:
determining, based on the first sensor and the second sensor, a position of a paper jam having occurred during an image formation job of forming the image on the recording medium, and
controlling the first light source to turn on in a case where the determined position of the paper jam corresponds to the first position of the first sensor, and controlling the second light source to turn on in a case where the determined position of the paper jam corresponds to the second position of the second sensor,
wherein, in a case where the conveyance unit is pulled out from the image forming apparatus, electrical connection between the conveyance unit and the power source by the connector is shut off, and
wherein, in a state where the conveyance unit is pulled out from the image forming apparatus, a light source controlled to turn on by the controller glows based on electric power accumulated in the capacitor during the image formation job.