US 11,991,323 B2
Image forming apparatus and control method with power saving modes
Yasuhiko Watanabe, Chigasaki Kanagawa (JP)
Assigned to TOSHIBA TEC KABUSHIKI KAISHA, Tokyo (JP)
Filed by TOSHIBA TEC KABUSHIKI KAISHA, Tokyo (JP)
Filed on Aug. 23, 2022, as Appl. No. 17/893,708.
Claims priority of application No. 2021-142623 (JP), filed on Sep. 1, 2021.
Prior Publication US 2023/0068473 A1, Mar. 2, 2023
Int. Cl. H04N 1/00 (2006.01); G03G 15/00 (2006.01)
CPC H04N 1/00567 (2013.01) [G03G 15/5004 (2013.01); G03G 2215/00725 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An image forming apparatus comprising:
a first sensor configured to detect a user;
a second sensor configured to detect a sheet in a sheet holder; and
a controller configured to change a transition mode of an operation mode based on a first detection result of the sheet in the sheet holder by the second sensor in response to the detection of the user by the first sensor when the operation mode of the image forming apparatus is a second power-saving mode that consumes less power than a first power-saving mode,
wherein when the operation mode is maintained in the second power-saving mode, the controller is configured to shift the operation mode from the second power-saving mode to the first power-saving mode when a predetermined number of users is detected by the first sensor, the first sensor being a single sensor,
wherein the controller is configured to lower a detection level of the first sensor in the second power-saving mode.