Sheet ejection device
AssigneeRiso Kagaku Corporation
InventorsHiroshi Sugitani, Tomohiko Shimoda
Life of this patent
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Abstract
A sheet ejection device includes a sheet tray on which ejected sheets are stacked, a pair of side fences for restricting positions of the ejected sheets along a lateral direction perpendicular to an ejection direction, and at least one rib is formed vertically on each inner side of the side fences. The ribs are configured to contact with side edges of each of the ejected sheets while the each of the ejected sheets falls down to the sheet tray to align the ejected sheet along the lateral direction. The ejected sheets are aligned adequately by the ribs. According to the sheet ejection device, superior sheet ejection performance can be brought without affected by its environment.
Claims11
A sheet ejection device comprising:
- a sheet tray on which ejected sheets are stacked, the sheet tray having a central axis;
- a pair of side fences for restricting positions of the ejected sheets along a lateral direction perpendicular to an ejection direction;
- at least one rib is formed vertically on each inner side of the side fences, in a top view each rib has an inclined surface inclined in the ejection direction toward the central axis;
- and
- the ribs are configured to contact with side edges of each of the ejected sheets while the each of the ejected sheets falls down to the sheet tray to align each of the ejected sheets along the lateral direction.
A sheet ejection device comprising:
- a sheet tray on which ejected sheets are stacked;
- a pair of side fences for restricting positions of the ejected sheets along a lateral direction perpendicular to an ejection direction, each side fence having an inner surface;
- at least one rib is formed vertically on the inner surface of each side fence, in a top view each rib has an inclined surface inclined in the ejection direction;
- each rib has longitudinal axis that is perpendicular to the ejection direction and to the lateral direction;
- the ribs are configured to contact with side edges of each of the ejected sheets while each of the ejected sheets falls down to the sheet tray to align each of the ejected sheets along the lateral direction;
- and each side fence has two of the ribs formed parallel to each other on the upstream side thereof.
Dependencies are inferred from the claim text.