Abstract: An image forming apparatus includes a processor configured to display a clearing method for clearing an initial error among errors that have occurred, on a display part, while the clearing method of the initial error of which the clearing method is displayed on the display part is displayed, receive a temporary clearing instruction for processing the initial error as being temporarily cleared, each time the temporary clearing instruction is received, display clearing methods of subsequent errors on the display part in order in a switched manner, and in a case where clearing operations for all clearing methods of the errors that have occurred are completed, resume processing of a job paused by the errors.

Abstract: A sheet feeder includes: multiple sheet feeding trays each configured to house one or more print media sheets; and a processor configured to cause a sheet feeding tray assigned a top priority to feed a print media sheet after the sheet feeding tray is set up for sheet feeding and a state of the sheet feeding tray is fixed, the top priority being highest among priorities that are assigned to the multiple sheet feeding trays and that are determined in advance with regard to sheet feeding.

Abstract: A motor control device includes an abnormality determination unit that determines the presence of any abnormality in a current detector. The abnormality determination unit includes, for example, a U-phase abnormality determination device. The U-phase abnormality determination device calculates, as a voltage command threshold, a value obtained by adding a dead time voltage error, which is a voltage error occurring due to a dead time, to an ideal voltage command threshold, which is a value obtained by multiplying a prescribed reference current value by a motor resistance value, and outputs a signal indicating an abnormality in the current detector when the effective value of a voltage command value is equal to or greater than the voltage command threshold and the effective value of a current detection value is equal to or less than a current detection threshold that is lower than the reference current value.