Patent ID: 6209865
Filing Date: 2001-04-03
Classification: B65H

Abstract:
In a printing device having an accumulator adapted to collect one or more sheets of printed media and eject said media to an output stack in an output stack tray below the accumulator, the improvement comprising apparatus for improving output stack quality, the apparatus comprising:a stack holder connected to the accumulator and extending generally downward toward the output stack;a mechanism for moving the stack tray generally vertically up and down; andcontrol logic that causes the stack tray to move up toward the accumulator, during ejection of said media to the output stack, to force the output stack against the stack holder so that the stack holder presses upon a top surface of the output stack;wherein the stack holder comprises a frictional surface that contacts the top surface of the output stack during ejection of said media and that frictionally engages said top surface to limit movement of said top surface relative to the stack holder and accumulator.