A sheet conveyance apparatus includes a control unit configured to determine that the sheet is of a first size in a case where first and second detection sensors detect that a sheet is present and determines that the sheet is of a second size smaller than the first size in a case where the first detection sensor detects that the sheet is present and the second detection sensor detects no sheet. The control unit controls the sheet conveyance unit in a first mode in a case where the control unit determines that the sheet is of the first size and controls the sheet conveyance unit in a second mode in which a sheet conveyance speed is slower than that of the first mode in a case where the control unit determines that the sheet is of the second size.

An image forming apparatus includes an apparatus body, a wall face of the apparatus body having an ejection opening from which a sheet conveyed in a first direction is ejected, a sheet support to support the sheet discharged from the discharge opening in the first direction, and a mount to mount the sheet support to the apparatus body. The mount includes an abutting portion including an abutting face that contacts a wall face of the apparatus body, and a projection projecting in a second direction opposite to the first direction from the abutting face. The abutting face extends in a vertically downward direction from the projection, and the projection is fixed to the apparatus body in a vertical direction.

An image forming apparatus includes an apparatus body, a wall face of the apparatus body having an ejection opening from which a sheet conveyed in a first direction is ejected, a sheet support to support the sheet discharged from the discharge opening in the first direction, and a mount to mount the sheet support to the apparatus body. The mount includes an abutting portion including an abutting face that contacts a wall face of the apparatus body, and a projection projecting in a second direction opposite to the first direction from the abutting face. The abutting face extends in a vertically downward direction from the projection, and the projection is fixed to the apparatus body in a vertical direction.

A sensor device is provided to detect a filling status of a consumable in a dispenser, the consumable being web material, and the filling status relating to a spatial extension of the consumable in the dispenser. The sensor device includes a capacitive sensor having an elongated and planar sensor area; and a first measurement section configured to measure the filling status of the dispenser. The capacitive sensor includes a first channel and a second channel. The first measurement section is configured to measure the filling status of the dispenser based on changes in capacitance detected by the first channel and the second channel.

A medium discharging device includes a discharging unit which discharges a medium; and a medium receiving tray which receives the medium discharged by the discharging unit, and is switched between an extended state and an accommodated state, in which the medium receiving tray is provided with a base tray, a main extending unit that is accommodated or extended, and at least one sub-extending unit that is accommodated or extended, and in which the base tray forms an accommodating space for accommodating at least the one sub-extending unit, and is provided with a first protrusion portion protruding toward the accommodating space.

A medium discharging device includes a discharging unit which discharges a medium; and a medium receiving tray which receives the medium discharged by the discharging unit, and is switched between an extended state and an accommodated state, in which the medium receiving tray is provided with a base tray, a main extending unit that is accommodated or extended, and at least one sub-extending unit that is accommodated or extended, and in which the base tray forms an accommodating space for accommodating at least the one sub-extending unit, and is provided with a first protrusion portion protruding toward the accommodating space.

In one example, a holder for a media roll includes a first support to support a first end of the roll, a second support to support a second end of the roll, and a shifter to change the distance between the first support and the first end of the roll without changing the distance between the second support and the second end of the roll.

A medium discharging device includes a discharging unit which discharges a medium; and a medium receiving tray which receives the medium discharged by the discharging unit, and is switched between an extended state and an accommodated state, in which the medium receiving tray is provided with a base tray, a main extending unit that is accommodated or extended, and at least one sub-extending unit that is accommodated or extended, and in which the base tray forms an accommodating space for accommodating at least the one sub-extending unit, and is provided with a first protrusion portion protruding toward the accommodating space.

A medium discharging device includes a discharging unit which discharges a medium; and a medium receiving tray which receives the medium discharged by the discharging unit, and is switched between an extended state and an accommodated state, in which the medium receiving tray is provided with a base tray, a main extending unit that is accommodated or extended, and at least one sub-extending unit that is accommodated or extended, and in which the base tray forms an accommodating space for accommodating at least the one sub-extending unit, and is provided with a first protrusion portion protruding toward the accommodating space.

A medium discharging device includes a discharging unit which discharges a medium; and a medium receiving tray which receives the medium discharged by the discharging unit, and is switched between an extended state and an accommodated state, in which the medium receiving tray is provided with a base tray, a main extendeding unit that is accommodated or extended, and at least one sub-extendeding unit that is accommodated or extended, and in which the base tray forms an accommodating space for accommodating at least the one sub-extendeding unit, and is provided with a first protrusion portion protruding toward the accommodating space.