Browse Prior Art Database

Stacker Table Height Control

IP.com Disclosure Number: IPCOM000057520D
Original Publication Date: 1988-May-01
Included in the Prior Art Database: 2005-Feb-15

Publishing Venue

IBM

Related People

Authors:
Bushaw, KA Bustamante, LA Myers, WL [+details]

Abstract

In a xerographic reproduction device (i.e., a copier or a printer), the output sheets are piled, in sets of n sheets, on a horizontal output table. The vertical height of the table is controlled, relative to the fixed vertical position of the reproduction device's sheet discharge path, in order to insure reliable stacking of the sheets on the table. (Image Omitted) The table's height is controlled by a microprocessor(s) and a servo which responds to the output signal received from a fixed vertical position photocell that views a light source which also is mounted at a fixed vertical position diagonally across the table. The vertical position of the light source and photocell correspond generally to the height at which the top of the stack must be maintained.