Patent ID: 11882253
Assignee: SHARP KABUSHIKI KAISHA
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. An image forming apparatus comprising:
a post-processor including:
a sheet detection circuit that detects a sheet inserted in a sheet insertion opening for manual stapling;
a staple mechanism that executes stapling processing on the sheet; and
a drive circuit that actuates the staple mechanism;

a post-processing controller that operates the drive circuit in response to detection of the sheet;
a power circuit that supplies power to the drive circuit and another circuit in the apparatus; and
a power saving controller that shuts off a power supply from the power circuit to the drive circuit and the other circuit in the apparatus and shifts the apparatus from a normal mode to a power saving mode when a predetermined shifting condition is satisfied, wherein
when the staple mechanism is driven, the post-processing controller notifies the power saving controller of conditions of the stapling processing,
when the shifting condition from the normal mode to the power saving mode is satisfied, the power saving controller determines, on a basis of a notification received from the post-processing controller, whether the post-processor is in the conditions of the stapling processing, and when the power saving controller determines that the post-processor is not in the conditions of the stapling processing, the power saving controller instructs the post-processing controller to prohibit the stapling processing and to shift the apparatus to the power saving mode.