A METHOD FOR MECHANICALLY CONNECTING TWO SENSORS TO PROVIDE THREE CONTROL SIGNALS
Original Publication Date: 1999-Apr-30
Included in the Prior Art Database: 2004-Apr-09
Xerox Disclosure Journal
Disclosed is a method of mechanically connecting two sensors to replace the three normally required to define four condition states. An embodiment for a copy medium supply is shown in Figures 3 - 6. Figure 1 lists a truth table for the standard three-sensor implementation and Figure 2 lists a truth table for the disclosed two-sensor implementation. The truth table of Figure 2 results from defining two low (L) states for Sensor 1. The first appears at "Not Low Paper" and the second at "Paper Tray Out". As shown in Figures 3 and 6 a sensor flag 14 has two low positions.