Patent ID: 7802783

Claim:
An image forming apparatus, comprising: a casing including a manual feed input through which a recording medium is inserted; a sheet supply unit comprising an input tray in which a recording medium is stored, a pickup roller for picking up a recording medium in the input tray, and a supply roller for supplying a recording medium picked up by the pick up roller; a motor; a feeding roller configured to rotate responsive to drive force received from the motor, the feeding roller being configured to convey the recording medium inserted through the manual feed input in a sheet feeding direction and configured to convey the recording medium supplied from the supply roller in the sheet feeding direction; a clutch device, the clutch device configured to be switched between a first mode in which the drive force from the motor is transmitted to the feeding roller and a second mode in which the drive force is prevented from being transmitted from the motor to the feeding roller; a first sensor configured to detect the recording medium, the first sensor being disposed between the manual feed input and the feeding roller; a second sensor configured to detect the recording medium, the second sensor being disposed downstream of the feeding roller in the sheet feeding direction; an image forming unit configured to form an image and apply the image to the recording medium, the image forming unit being disposed downstream of the second sensor in the sheet feeding direction; and a control unit, wherein when the feeding roller feeds the recording medium from the manual feed input, the control unit is configured to: maintain the clutch device in the first mode while controlling the motor to drive the feeding roller to feed the recording medium into the casing responsive to the first sensor detecting that the recording medium is fed through the manual feed input; control the motor to stop before a leading end of the recording medium reaches the second sensor responsive to the first sensor detecting the recording medium without switching the clutch device from the first mode to the second mode; and control the motor to drive the feeding roller to feed the recording medium to the image forming unit and to cause the image forming unit to form the image on the recording medium based on the second sensor detecting the recording medium, wherein when the feeding roller feeds the recording medium from the sheet supply unit, the control unit is configured to: control the clutch device to switch from the first mode to the second mode to stop the feeding roller before a leading end of the recording medium reaches the second sensor responsive to the first sensor detecting the recording medium with the motor being continuously driven; and control the clutch device to switch from the second mode to the first mode to drive the feeding roller to feed the recording medium to the image forming unit and to cause the image forming unit to form the image on the recording medium based on the second sensor detecting the recording medium.