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US 6,302,389 B1Granted
Sheet treating apparatus and image forming apparatus having the same
AssigneeCanon Kabushiki Kaisha
InventorsKatsuhito Kato, Yoshinori Isobe
Life of this patent
Estimating the term…
Abstract
A sheet treating apparatus includes a tray liftable and lowerable while sheets are stacked on the tray. A sheet pressing member is movable between a pressing position in which the sheets on the tray are pressed by the sheet pressing member and a retracted position. A sheet pressing member driving device retracts the sheet pressing member when the tray is lowered and for moving the sheet pressing member to the pressing position when the tray is lifted. A detecting device detects a height position of the sheets on the tray to stop lifting the tray.
Claims9
A sheet treating apparatus comprising:
- tray means liftable and lowerable while sheets are stacked on said tray means;
- a sheet pressing member movable between a pressing position in which the sheets on said tray means are pressed by said sheet pressing member and a retracted position;
- sheet pressing member driving means for retracting said sheet pressing member when said tray means is lowered and for moving said sheet pressing member to said pressing position when said tray means is lifted;
- and
- detecting means for detecting a height position of the sheets on said tray means to stop lifting said tray means.
2 more elements
Dependencies are inferred from the claim text.