Abstract: An image forming apparatus comprises a conveyance section, a plurality of sensors, an image forming section, a conveyance control section and a control section. The conveyance section forms a conveyance path for conveying paper. The plurality of sensors outputs detection signals indicating the existence of the paper at a plurality of positions along the conveyance path. The image forming section forms images on the paper conveyed by the conveyance section. The conveyance control section controls the conveyance of the paper conveyed by the conveyance section based on the detection signals of the plurality of sensors. The control section determines, in a case in which the detection signal of any of the plurality of sensors is abnormal, whether it is due to sensor failure or paper conveyance abnormality, and sets to ignore the detection signal of the failed sensor and continue the processing if it is due to the sensor failure.

Abstract: Generally, in accordance with one embodiment, an image forming apparatus includes a stacking section, a sensor, a printing unit, a display and a controller. The stacking section is configured to stack a sheet. The sensor is configured to detect the size of the sheet set on the stacking section. The printing unit is configured to form an image on the sheet. The display is configured to display the image. The controller is configured not to display a sheet size except the sheet size detected based on an output signal from the sensor on a setting screen for the sheet size of an image forming object in a detectable status.

Abstract: Generally, in accordance with one embodiment, an image forming apparatus includes a stacking section, a sensor, a printing unit, a display and a controller. The stacking section is configured to stack a sheet. The sensor is configured to detect the size of the sheet set on the stacking section. The printing unit is configured to form an image on the sheet. The display is configured to display the image. The controller is configured not to display a sheet size except the sheet size detected based on an output signal from the sensor on a setting screen for the sheet size of an image forming object in a detectable status.