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(11) | EP 1 726 550 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Sheet accumulating device, sheet accumulating method and sheet feeding device |
(57) A sheet accumulating device, a sheet accumulating method and a sheet feeding device
are provided. The sheet accumulating device (2) includes a sheet feeding section (4),
a front stopper (20), an attenuation section of the front stopper, an accumulating
portion in which sheets whose front ends are caught by the front stopper are accumulated,
and a damping force controlling section (8) that controls damping force in the attenuation
section based on a mass of the sheets, a speed of feeding the sheets, or a product
of the mass of the sheets and the speed of feeding, thereby causing no damage to the
sheets even in a case in which two or more types of sheets having the different masses
are fed in at a high speed.
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