Abstract: There is provided an image forming apparatus including: a load device which performs a copy function, a scan function, a print function and the like; and a power saving mode such as a standby mode and a sleep mode. When the image forming apparatus is in the power saving mode, electric charge charged in an electric storage device such as an electrolytic capacitor which is a low voltage power source is used to execute the power saving mode. When an electric potential of the electric storage device is lower than a predetermined threshold, the electric storage device is charged by a commercial power source.

Abstract: There is provided an image forming apparatus including: a load device which performs a copy function, a scan function, a print function and the like; and a power saving mode such as a standby mode and a sleep mode. When the image forming apparatus is in the power saving mode, electric charge charged in an electric storage device such as an electrolytic capacitor which is a low voltage power source is used to execute the power saving mode. When an electric potential of the electric storage device is lower than a predetermined threshold, the electric storage device is charged by a commercial power source.

Abstract: An image forming apparatus according to an aspect of the present invention includes: an image-formation processing unit configured to perform processing for forming an image; a power control unit configured to control power supply to the image-formation processing unit to make it possible to switch an image formable state for supplying power to enable the image-formation processing unit to immediately perform the processing for image formation and an electricity saving state for reducing the power supply and performing electricity saving; and a power key configured to be once activated to thereby control the power control unit to transition the image forming apparatus from the image formable state to the electricity saving state and activated again to thereby control the power control unit to return the image forming apparatus from the electricity saving state to the image formable state.

Abstract: An apparatus and method for protecting a hard disk drive in a hardcopy device includes detecting an abnormal condition during operation of the hardcopy device, and moving a head of the hard disk drive to a safe position in response to the detection of the abnormal condition. An indication of the abnormal condition is generated after the head of the hard disk drive has been moved to the safe position.

Abstract: An apparatus and method for protecting a hard disk drive in a hardcopy device includes detecting an abnormal condition during operation of the hardcopy device, and moving a head of the hard disk drive to a safe position in response to the detection of the abnormal condition. An indication of the abnormal condition is generated after the head of the hard disk drive has been moved to the safe position.

Abstract: An electrostatic copying machine has a cassette detachment detection circuit. The detection circuit detects a detachment of any one of a plurality of cassettes. When one of the plurality of paper cassettes is taken out of the main body of the copying machine and returned to the original position by the detection circuit, the returned cassette is automatically selected for supplying papers therefrom. The residual of the papers of the cassette which is taken out of the main body is checked by a paper remainder detection circuit. In a case that, when the residual of the papers in the returned cassette is not a predetermined value, the operability of the copying machine can be improved since the cassette is returned to the main body and the paper is supplied from the returned cassette.