Xerox 5400N Quick Reference Guide - Page 148

RAP 43 Low Paper Tray 1/2/3 Paper stack in the Paper Tray Assembly is below 50 sheets. Table 69 Low Paper Tray 1/2/3 Troubleshooting Procedure Step Actions and Questions Yes No 1 LOAD PAPER Go to Insert a full Tray Assembly into the affected position. Step 2. Does the Error Message reappear? Problem solved. 2 LOW PAPER SENSOR ACTUATOR TEST Go to 1. Remove the affected Tray Assembly. Step 3. 2. Push up the Low Paper Sensor Actuator [PL 3.1, page 390] manually, then release. Does the Low Paper Sensor Actuator return to its normal position when released? Repair or replace the Low Paper Sensor Assembly [RRP 3.4, page 276] or Low Paper Sensor Actuator [PL 3.1, page 390]. 3 LOW PAPER SENSOR TEST Replace the Check wiring Note: When checking the Low Paper Sensor using the Sensor Test, at least one Paper Size switch and the Low Paper Sensor must be actuated. Print Engine Controller Board [RRP 8.5, page 310]. associated with the Low Paper Sensor. If OK, replace 1. Enter Diagnostics mode. the Low 2. From the Main Menu, select Component Test / Sensor Input / press [4] to start test, [0] to stop. 3. Push up the Low Paper Sensor Actuator, then Paper Sensor. release. Does the LCD increment each time you push and release the Actuator? 4 SUSPECT COMPONENTS The following printer components and areas are associated with this specific problem. One or more of these components or areas may have failed partially or completely. If you cannot isolate this problem using the steps in this Repair Analysis Procedure, replace each component or troubleshoot each area listed below, one at a time, until you isolate and solve the problem. I Low Paper Sensor Actuator [RRP 3.4, page 276] I Print Engine Controller Board [RRP 8.5, page 310 I Wiring and connectors linking the components Phaser 5400 Laser Printer Service Guide 119