Sheet conveying device, image reading device, and image forming device

摘要

A sheet conveying device includes: a sheet housing unit that houses a sheet; a sheet conveying unit that conveys the sheet; a sheet detection unit that detects presence or absence of the sheet in the sheet housing unit; a sheet nipping unit that nips the sheet housed in the sheet housing unit; and a control unit. The control unit controls the sheet nipping unit to reach a nipping state to nip the sheet in the sheet housing unit upon the sheet detection unit detecting a sheet-present state, executes a power saving mode to stop supplying power to at least a part of the electric mechanisms when no drive command is input for a predetermined time, and controls the sheet nipping unit to cancel the nipping state before execution of the power saving mode.

主权项

1. A sheet conveying device comprising:
a sheet housing unit that houses a sheet; a sheet conveying unit that conveys the sheet to a predetermined conveyance destination position; a sheet detection unit that detects presence or absence of the sheet in the sheet housing unit; a sheet nipping unit that nips the sheet housed in the sheet housing unit; a sheet sending unit that applies a conveying force toward the sheet conveying unit to the sheet nipped by the sheet nipping unit and sends out the sheet; and a control unit that controls drive of electric mechanisms in accordance with an input drive command, wherein the control unit controls the sheet nipping unit to reach a nipping state to nip the sheet in the sheet housing unit upon the sheet detection unit detecting a sheet-present state, and to cancel the nipping state upon detection of absence of the sheet in the sheet housing unit, the control unit executes a power saving mode to stop supplying power to at least a part of the electric mechanisms requiring to be supplied with power when driven, other than the sheet detection unit, when no drive command is input for a predetermined time, a cancellation condition to cancel the power saving mode upon a detection state of the sheet in the sheet housing unit by the sheet detection unit being changed from absent to present during the power saving mode is set, and the control unit controls the sheet nipping unit to cancel the nipping state before execution of the power saving mode.