US 12,244,779 B2
Image forming apparatus
Yuichi Kaku, Sakai (JP)
Assigned to SHARP KABUSHIKI KAISHA, Sakai (JP)
Filed by SHARP KABUSHIKI KAISHA, Sakai (JP)
Filed on Jan. 16, 2024, as Appl. No. 18/413,373.
Claims priority of application No. 2023-006760 (JP), filed on Jan. 19, 2023.
Prior Publication US 2024/0251048 A1, Jul. 25, 2024
Int. Cl. G06K 15/00 (2006.01); H04N 1/00 (2006.01)
CPC H04N 1/00896 (2013.01) [H04N 1/00087 (2013.01); H04N 1/00413 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An image forming apparatus comprising:
an operation acceptor that accepts an operation from a user;
an image former that has, to be switchable, two image formation modes that are a normal mode in which image formation is performed at a predetermined speed and a silent mode in which image formation is performed more silently than in the normal mode;
one or more controllers that control the image former; and
one or more power-source controllers that control a power source from which power is supplied to the image former and the controllers,
the power-source controllers transitioning to a predetermined sleep state when the operation acceptor has not accepted an operation for a predetermined standby time, and after transitioning to the sleep state, transitioning to a predetermined shutoff state when the operation acceptor has not accepted an operation for a predetermined sleep time, wherein
after transition to the sleep state is caused during the normal mode, the controllers control the power-source controllers to transition to the shutoff state when a predetermined first sleep time has elapsed, and
after transitioning to the sleep state during the silent mode, the controllers control the power-source controllers to transition to the shutoff state when a predetermined second sleep time which is longer than the first sleep time has elapsed.