Abstract: A sheet conveyance apparatus includes a first nip portion to convey a sheet in a sheet conveyance direction, a second nip portion to convey the sheet, and a guide unit to form a curved conveyance path that curves with respect to the sheet conveyance direction. The guide unit includes a first guide, a second guide to form at least a part of a curved conveyance path with the first guide, a first driven roller rotatably supported by the first guide, and a second driven roller rotatably supported by the second guide. When viewed in a width direction orthogonal to the sheet conveyance direction, a part of the first guide is formed so as not to intersect with a straight line passing through a first contact point and a second contact point.

Abstract: A sheet discharging apparatus includes a discharging portion, a stacking portion, a moving member configured to move to a first position, a second position, and a third position, a detection portion, and a control portion. In a case where the detection portion detects that the moving member has reached the second position, the control portion controls the discharging portion in a first mode or a second mode. In the second mode, the control portion restricts the discharge of a sheet after a predetermined number of sheets has been discharged to the stacking portion. The control portion is configured to determine the predetermined number of sheets, depending on a type of the sheet discharged by the discharging portion, a length of the sheet in a sheet conveyance direction, and temperature and/or humidity.

Abstract: A sheet discharging apparatus includes a discharging portion, a stacking portion, a moving member configured to move to a first position, a second position, and a third position, a detection portion, and a control portion. In a case where the detection portion detects that the moving member has reached the second position, the control portion controls the discharging portion in a first mode or a second mode. In the second mode, the control portion restricts the discharge of a sheet after a predetermined number of sheets has been discharged to the stacking portion. The control portion is configured to determine the predetermined number of sheets, depending on a type of the sheet discharged by the discharging portion, a length of the sheet in a sheet conveyance direction, and temperature and/or humidity.

Abstract: An image forming apparatus includes an image bearing member, a developing member, a transfer member, a cleaning member configured to remove toner from the surface of the image bearing member, a toner collecting container configured to collect the toner removed from the surface of the image bearing member by the cleaning member, a fixing unit configured to fix the toner image transferred onto the sheet by the transfer member to the sheet, and a duct disposed between the toner collecting container and the fixing unit, the duct forming an air passage through which air flowing toward an exterior of the image forming apparatus flows. The duct includes a first wall portion opposed to the fixing unit and a second wall portion opposed to the toner collecting container. The first wall portion is inclined with respect to the second wall portion.

Abstract: A sheet conveyance apparatus includes a first conveyance unit configured to form a first nip portion, a second conveyance unit configured to convey the sheet, and a guide unit configured to form a curved conveyance path. The guide unit includes a first guide, a second guide, a first driven roller rotatably driven with respect to the sheet by coming into contact with the sheet at a first contact point, and a second driven roller rotatably driven with respect to the sheet by coming into contact with the sheet at a second contact point. When viewed in a width direction orthogonal to the sheet conveyance direction, the first guide is formed so as not to intersect with a straight line passing through the first contact point and the second contact point on a side further upstream than the first contact point in the sheet conveyance direction.

Abstract: A sheet discharging apparatus includes a discharging portion, a stacking portion, a moving member configured to move to a first position, a second position, and a third position, a detection portion, and a control portion. In a case where the detection portion detects that the moving member has reached the second position, the control portion controls the discharging portion in a first mode or a second mode. In the second mode, the control portion restricts the discharge of a sheet after a predetermined number of sheets has been discharged to the stacking portion. The control portion is configured to determine the predetermined number of sheets, depending on a type of the sheet discharged by the discharging portion, a length of the sheet in a sheet conveyance direction, and temperature and/or humidity.