Xerox 4400DT Service Manual - Page 68
Close Front Cover/Close Rear Cover.
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Paper Size Error Troubleshooting Procedure (cont'd.) Step Actions and Questions Yes No 3 Is the paper size in the problem tray within printer specifications? Go to step 4. Replace with paper that meets specifications. 4 Check the side guides and the Paper Stack End Guide Go to step 5. Properly set in the problem tray. the guides. Are all guides properly set for the size of paper installed? 5 Check the size cam on the left side of the paper tray Go to step 6. Replace the (see the Paper Size Actuators table below). paper tray (PL Are the cams in good condition (not broken) and do they move freely as the paper tray end guide is moved. 2.1 on page 7-6/PL 11.1 on page 7-26). 6 1. Reinstall the paper tray. Replace the Replace the 2. Enter Service Diagnostics and select Sensor Tests. Engine Logic Tray Size 3. Scroll to Paper Tray Size Read and press OK. 4. Select "Tray 1 Size" and press OK. 5. Press "Back" and select another tray size until all installed trays are tested. Board (RRP 9.3 on page 6-89). PWB (RRP 3.13 on page 6-42/ RRP 11.19 on Does the paper size displayed on the Front Panel display match the size of the paper page 6-139). actually loaded in the tray? Close Front Cover/Close Rear Cover. (Close Front Cover/Close Rear Cover) Close Front/Rear Cover Troubleshooting Procedure Step Actions and Questions Yes No 1 1. Open and close the Front Cover. Go to step 2. Replace the 2. Inspect the movement of the Interlock Switch. Front Cover Does the actuator tab on the Front Cover press down on the Interlock Switch lever? Assembly (PL 1.1 on page 7-2). 2 1. Open and close the Rear Cover. Go to step 3. Replace the 2. Inspect the movement of the Interlock Switch. Rear Cover Does the actuator tab on the Rear Cover press down on the Interlock Switch lever? Assembly (PL 1.2 on page 7-4). 3 1. Enter Service Diagnostics and select Sensor Tests. Go to step 5. Go to step 4. 2. Scroll to Rear Cover Switch test and press OK. 3. Open and close the Rear Cover. Does the message on the display alternate between "Closed" and "Open" as you open and close the Rear Cover? Phaser 4400 Laser Printer Service Manual 2-31