A paper stacking device includes: a stacker on which paper is stacked; a paper ejector that ejects the paper; an aligning plate that is provided on a side of the paper, and aligns a side end of the paper; a paper floating member that is provided in the aligning plate, and supports, from below, the side end of the paper; and a blower that is provided on the side of the paper across the aligning plate, and blows air, wherein the aligning plate includes a blowing opening through which air from the blower is blown, the paper floating member is switched between: a paper floating position; and a retreat position, when the paper floating member is located in the paper floating position, the blowing opening is opened, and when the paper floating member is located in the retreat position, the blowing opening is shielded.

An image forming apparatus including a sheet storage portion in which a plurality of sheets is stored; a heater which heats air; a fan which sprays air on the sheet stored in the sheet storage portion; and a controller which controls the heat of the heater and controls the drive of the fan, in which the controller controls the heat of the heater at a first temperature before a drive time of the fan reaches a threshold value set in advance, the drive time being in which the fan sprays air heated by the heater on the sheet, and when the drive time of the fan reaches or exceeds the threshold value set in advance, controls the heat of the heater at a second temperature lower than the first temperature.

An image forming apparatus includes an ejection port, a stacker, a fan, and a duct. From the ejection port, a sheet is ejected to an ejection space in an ejection direction. The stacker stacks the sheet ejected from the ejection port, and the ejection space is disposed above the stacker. The fan is disposed outside the ejection space to suck air. The duct is connected to the fan. The duct has an exhaust port and a guide. The exhaust port is disposed above the ejection port and downstream from the ejection port in the ejection direction to exhaust the air from the exhaust port toward an upper face of the sheet in the ejection space. The guide connects the fan and the exhaust port to guide the air from the fan to the exhaust port.

An image forming apparatus including a sheet storage portion in which a plurality of sheets is stored; a heater which heats air; a fan which sprays air on the sheet stored in the sheet storage portion; and a controller which controls the heat of the heater and controls the drive of the fan, in which the controller controls the heat of the heater at a first temperature before a drive time of the fan reaches a threshold value set in advance, the drive time being in which the fan sprays air heated by the heater on the sheet, and when the drive time of the fan reaches or exceeds the threshold value set in advance, controls the heat of the heater at a second temperature lower than the first temperature.

A sheet stacking device includes a hopper unit on which box making sheet material is stacked; an ejection unit that ejects the sheet material to the hopper unit; a first blowing device that is disposed above the downstream side of the hopper unit in the transfer direction of the sheet material and that presses the sheet material downward by blowing air; a pressing device that is disposed above an upstream side of the hopper unit in the transfer direction of the sheet material and that presses the sheet material downward; and a control device that controls an operation of the first blowing device pressing a front end of the sheet material downward, and controls an operation of the pressing device so as to press a rear end of the sheet material downward with a pressing force higher than that applied to the front end of the sheet material.

A liquid discharge apparatus includes a conveyance path, a liquid discharge head, and a drying device. A medium is to be conveyed on the conveyance path. The liquid discharge head discharges liquid onto the medium conveyed on the conveyance path. The conveyance path includes a switchback path and an ejection path. The switchback path switches back a conveyance direction of the medium onto which the liquid has been discharged. The ejection path conveys the medium onto which the liquid has been discharged to an ejection port. The drying device dries the medium both on the switchback path and on the ejection path.

The invention relates to an apparatus for a single-track or multitrack provision of web-like interleaved sheet material at a cutting region in which products supplied on one track or on multiple tracks are cut into slices and interleaved sheets are introduced which are cut off from the provided interleaved sheet material in the cutting region, comprising an output device which is configured to eject at least one material web into the cutting region, wherein the output device comprises at least one driven feed roll and at least one counter-unit which forms a feed gap for the material web together with the feed roll.

A sheet stacking apparatus includes a discharging portion including a nip portion nipping and conveying a sheet, a stacking portion on which the sheet discharged by the discharging portion is stacked, an air blowing unit configured to blow air toward a lower face of the sheet being discharged by the discharging portion, and an air volume control portion configured to control the air blowing unit such that a volume of the air blown by the air blowing unit is switched from a first air volume to a second air volume which is smaller than the first air volume while the nip portion of the discharging portion is nipping and conveying the sheet to set the volume of the air to the second air volume in a case where a trailing end of the sheet discharged by the discharging portion passes through the nip portion.

An aspect of the present invention includes: a sheet storage unit configured to store sheets; an air blowing unit configured to blow air; a duct configured as a flow passage to an air blowing outlet for blowing air sent from the air blowing unit toward the front end of an upper part of a sheet bundle stored in the sheet storage unit; a suction transport unit configured to suck a sheet floating from the sheet bundle upward and transport the sheet; a shutter member configured to block the flow passage in the duct; and an openable/closeable member configured to open an opening part of the duct, such that air staying in the duct by blocking the flow passage by the shutter member is discharged from the opening part.

A sheet conveying apparatus configured to convey a sheet includes a reversing portion, a reversing retraction portion provided in the reversing portion, a conveyance portion, a guide member provided in the reversing retraction portion, and a fan provided in the conveyance portion. The reversing portion conveys the sheet in a first direction and then a second direction opposite to the first direction. The reversing retraction portion temporarily retracts the sheet conveyed in the first direction. The conveyance portion has a conveyance path through which the sheet conveyed in the second direction passes and configured to convey the sheet. The guide member guides one surface of the sheet. The fan blows air toward the sheet guided by the guide member and is disposed to blow the air of the conveyance path in the conveyance portion toward the reversing retraction portion and along the guide member in the first direction.