摘要:
The present invention provides a stack sheet supplying apparatus comprsing a sheet stacking means, a supply means for supplying a sheet by contacting with an uppermost sheet in a sheet stack rested on the sheet stacking means, a lift/lower means for controlling lifting and lowering of the supply means, a drive means for controlling lifting and lowering of the lift/lower means, a detection means for detecting the fact that the supply means reaches a supply position after the supply means is lowered, and a control means for turning OFF the drive means on the basis of a detected result of the detection means.
摘要:
An image reading apparatus includes: an opening/closing portion (2) configured to be rotatable around a hinge shaft; a biasing portion configured to apply a force to the opening/closing portion (2) such that moment of the hinge shaft rotation higher than moment of the hinge shaft rotation according to self-weight of the opening/closing portion (2) is generated in a state in which the opening/closing portion (2) is placed in a range up to a predetermined rotation angle from a closed position with respect to the apparatus main body (100), and moment of the hinge shaft rotation that is balanced with the moment of the hinge shaft rotation according to the self-weight of the opening/closing portion (2) is generated in a state in which the opening/closing portion (2) is opened more than the predetermined rotation angle; and a holding portion configured to maintain the opening/closing portion (2) at the closed position.
摘要:
An image forming apparatus capable of preventing degradation of image quality and reducing time required for rotational phase control. Toner images different in color are formed on a plurality of photosensitive drums, respectively. The toner images are transferred onto an intermediate transfer belt in superimposed relation. A motor controller performs phase control for bringing phases of the respective photosensitive drums into predetermined relation based on a rotational phase difference detected using phase detection sensors. When the rotational phase difference is out of a predetermined range, the motor controller performs the phase control with the photosensitive drums and the intermediate transfer belt separated from each other, whereas when the rotational phase difference is within the predetermined range, the motor controller performs the phase control with the photosensitive drums and the intermediate transfer belt in contact with each other.
摘要:
A sheet feeding apparatus includes: a liftable stacking member (11); on which a sheet is stacked; a feeding member (1) which feeds the sheet in abutment against the uppermost one of the sheets placed on the stacking member, the feeding member moving from a separation position to an abutment position; a driving portion (M2) which lifts the stacking member; and a control portion (1000) configured to controls the driving portion so as to lift the stacking member when a plurality of signals, which the control portion receives from a sensor (91) due to the feeding member moving from the separation position to the abutment position repeatedly, indicate that the uppermost one of the sheets placed on the stacking member is located below a predetermined position.
摘要:
The present invention provides a stack sheet supplying apparatus comprsing a sheet stacking means, a supply means for supplying a sheet by contacting with an uppermost sheet in a sheet stack rested on the sheet stacking means, a lift/lower means for controlling lifting and lowering of the supply means, a drive means for controlling lifting and lowering of the lift/lower means, a detection means for detecting the fact that the supply means reaches a supply position after the supply means is lowered, and a control means for turning OFF the drive means on the basis of a detected result of the detection means.
摘要:
An image forming apparatus capable of preventing degradation of image quality and reducing time required for rotational phase control. Toner images different in color are formed on a plurality of photosensitive drums, respectively. The toner images are transferred onto an intermediate transfer belt in superimposed relation. A motor controller performs phase control for bringing phases of the respective photosensitive drums into predetermined relation based on a rotational phase difference detected using phase detection sensors. When the rotational phase difference is out of a predetermined range, the motor controller performs the phase control with the photosensitive drums and the intermediate transfer belt separated from each other, whereas when the rotational phase difference is within the predetermined range, the motor controller performs the phase control with the photosensitive drums and the intermediate transfer belt in contact with each other.