Patent ID: 7325800
Filing Date: 2008-02-05
Classification: B65H

Abstract:
1. A reprographic device, comprising: an automatic document handler that receives and feeds documents from a feed tray along a predetermined feed path; a scanning member positioned within said predetermined paper path to read images on each document and forward the image data for further processing; an image processor that receives the image data from said scanning member and processing it; a plurality of copy sheet feed trays adapted to feed copy sheets to receive images thereon from said image processor; and a finishing system, said finishing system including a main tray and a monitoring system that monitors staple build-up in small stapled copy sheet sets in said main tray to prevent poor stacking and poor compiling of said small stapled copy sheet sets, and wherein said monitoring system includes a sloped stack detection sensor and a cross beam sensor adapted to monitor stack height of sheets or sheet sets ejected onto said main tray, and wherein said main tray includes a backwall and wherein said sloped stack detection sensor is a reflective sensor positioned on said backwall a predetermined distance below said cross beam sensor.