A medium reversing and discharging device includes a discharger that discharges a medium in a paper discharge direction from a discharge outlet, a holder that holds and reverses the medium, and a driver that moves the holder such that when a first plane along a portion of the medium in contact with the discharge outlet does not intersect with a second plane along a portion of the medium held by the holder on a downstream side in the paper discharge direction of the discharge outlet a moving speed at which the holder moves is lower than a discharge speed at which the medium is discharged from the discharge outlet.

An image forming apparatus has a sheet feed portion, a conveying portion, a control portion, a first sensor having the detection position at a first position in the sheet conveying passage, and a second sensor having the detection position at a second position downstream of the first position in the sheet conveying direction. The control portion performs first sensing to sense whether the sheet's rear end has passed the first position within a first time of the start of the feeding and second sensing to sense whether the sheet's rear end has passed the second position within a second time of the start of the feeding. Even if the control portion is unable to sense passage of the sheet's rear end in the first sensing, when it senses passage of the sheet's rear end in the second sensing, it makes the conveying portion continue feeding the sheet.

An image forming apparatus has a sheet feed portion, a conveying portion, a control portion, a first sensor having the detection position at a first position in the sheet conveying passage, and a second sensor having the detection position at a second position downstream of the first position in the sheet conveying direction. The control portion performs first sensing to sense whether the sheet's rear end has passed the first position within a first time of the start of the feeding and second sensing to sense whether the sheet's rear end has passed the second position within a second time of the start of the feeding. Even if the control portion is unable to sense passage of the sheet's rear end in the first sensing, when it senses passage of the sheet's rear end in the second sensing, it makes the conveying portion continue feeding the sheet.

A medium ejection apparatus includes an ejection roller pair configured to eject a medium, a driving device configured to rotate at least one roller of the ejection roller pair, a processor for detecting a size of the medium, and controlling the driving device to increase a rotation speed of the at least one roller to be higher than a previous rotation speed, from a predetermined timing after a rear edge of the medium passes through a nip position of the ejection roller pair. The processor changes the predetermined timing in accordance with the size of the medium.

A medium ejection apparatus includes an ejection roller pair configured to eject a medium, a driving device configured to rotate at least one roller of the ejection roller pair, a processor for detecting a size of the medium, and controlling the driving device to increase a rotation speed of the at least one roller to be higher than a previous rotation speed, from a predetermined timing after a rear edge of the medium passes through a nip position of the ejection roller pair. The processor changes the predetermined timing in accordance with the size of the medium.

Example implementations relate to print media stacks. In some examples, a device may include a sheet channel to guide a sheet of print media within the sheet channel above and separated in a vertical direction from a stack of printed media when the sheet of print media exits a print path of a printer. The device may include a plurality of clamps to control alignment of the sheet of print media on the stack of printed media when the sheet channel moves outboard from the sheet of print media to allow the sheet of print media to fall onto the stack of printed media, wherein the plurality of clamps sequentially pin the sheet of print media to the stack of printed media from a middle portion of the sheet of print media outward.

An example print medium loading device includes a loading unit on which a print medium is loadable, a transporting roller unit to transport a print medium toward the loading unit, and a moving gate between the loading unit and the transporting roller unit. The loading gate moves according to locations to which the print medium is transported. In an example, when a first print medium is loaded on the loading unit and the transporting roller unit transports a second print medium toward the loading unit, the moving gate is positioned at the first location to overlap a trailing end of the first print medium toward the moving gate. When the leading end of the second print medium is past the moving gate and the second print medium is loaded on the loading unit, the moving gate sequentially moves through the first through fourth positions.

An example print medium loading device includes a loading unit on which a print medium is loadable, a transporting roller unit to transport a print medium toward the loading unit, and a moving gate between the loading unit and the transporting roller unit. The loading gate moves according to locations to which the print medium is transported. In an example, when a first print medium is loaded on the loading unit and the transporting roller unit transports a second print medium toward the loading unit, the moving gate is positioned at the first location to overlap a trailing end of the first print medium toward the moving gate. When the leading end of the second print medium is past the moving gate and the second print medium is loaded on the loading unit, the moving gate sequentially moves through the first through fourth positions.

A medium feeding apparatus capable of switching between a first feeding mode and a second feeding mode, in which in the first feeding mode, when a first detection section positioned downstream of a feeding roller in a medium feeding direction detects passage of a trailing end of a preceding medium in a feeding standby state in which driving of the feeding roller that feeds the medium is stopped, starting the driving of the feeding roller to perform feeding of a succeeding medium, and in the second feeding mode, when a second detection section positioned downstream of the first detection section in the medium feeding direction detects the passage of the trailing end of the preceding medium in the feeding standby state, starting the driving of the feeding roller to perform the feeding of the succeeding medium.

A medium feeding apparatus capable of switching between a first feeding mode and a second feeding mode, in which in the first feeding mode, when a first detection section positioned downstream of a feeding roller in a medium feeding direction detects passage of a trailing end of a preceding medium in a feeding standby state in which driving of the feeding roller that feeds the medium is stopped, starting the driving of the feeding roller to perform feeding of a succeeding medium, and in the second feeding mode, when a second detection section positioned downstream of the first detection section in the medium feeding direction detects the passage of the trailing end of the preceding medium in the feeding standby state, starting the driving of the feeding roller to perform the feeding of the succeeding medium.