Paper ejection device and image forming apparatus
AssigneeRicoh Company, Ltd.
InventorMitsuhiro Sugawara
Life of this patent
Estimating the term…
Abstract
A paper ejection device holds paper ejected out from an upstream device through a paper-ejection opening of the upstream device. The paper ejection device includes: a pair of side fences arranged parallel and perpendicularly to a paper ejection direction, the paper ejection direction being a direction in which paper is ejected through the paper-ejection opening, to restrict positions of edges of the ejected paper in a width direction; and a control unit that, when an ejection speed at which the paper is ejected through the paper-ejection opening is higher than a predetermined speed, controls spacing between the pair of side fences to be narrower than spacing between the pair of side fences for paper ejected at a speed equal to or lower than the predetermined speed.
Claims8
A paper ejection device for holding paper ejected out from an upstream device through a paper-ejection opening of the upstream device, the paper ejection device comprising:
- a pair of side fences arranged parallel to a paper ejection direction, the paper ejection direction being a direction in which paper is ejected through the paper-ejection opening, to restrict positions of edges of the ejected paper in a width direction;
- an environmental-temperature-and-humidity detector that detects an environmental temperature and humidity;
- and
- a control unit that, when an ejection speed, obtained by an ejection speed detector, at which the paper is ejected through the paper-ejection opening is higher than a set speed, controls spacing between the pair of side fences to be narrower than spacing between the pair of side fences for paper ejected at a speed equal to or lower than the set speed, and
- the control unit further changes the spacing between the pair of side fences depending on the environmental temperature and humidity detected by the environmental-temperature-and-humidity detector.
An image forming apparatus comprising:
- an image forming unit;
- and
- a paper ejection device for holding paper ejected out from an upstream device through a paper-ejection opening of the upstream device, the paper ejection device comprising:
- a pair of side fences arranged parallel to a paper ejection direction, the paper ejection direction being a direction in which paper is ejected through the paper-ejection opening, to restrict positions of edges of the ejected paper in a width direction;
- an environmental-temperature-and-humidity detector that detects an environmental temperature and humidity;
- and
- a control unit that, when an ejection speed, obtained by an ejection speed detector, at which the paper is ejected through the paper-ejection opening is higher than a set speed, controls spacing between the pair of side fences to be narrower than spacing between the pair of side fences for paper ejected at a speed equal to or lower than the set speed, and
- the control unit changes the spacing between the pair of side fences depending on the environmental temperature and humidity detected by the environmental-temperature-and-humidity detector.
Dependencies are inferred from the claim text.