Xerox 4400DT Service Manual - Page 177

Skewed Image Troubleshooting Procedure Step Actions and Yes No Questions 1 Run 5 Test Prints, single I Check the Fuser Assembly. Go to step 2. sided, from each paper Check for worn parts or rolls. tray. If the printer has a Duplex Unit, run five duplexed prints from each tray. Check for obstructions or contamination. Clean or replace as necessary. I Check all rolls and drives in the Exit Assembly. Check for Does the skewed image appear only on duplexed prints? obstructions or contamination. Clean or replace as necessary. I Check the Duplex Unit. Check for worn parts or rolls. Check for obstructions or contamination. Clean or replace as necessary. I Check the chute between the Duplex Unit and the Registration Rolls. Check for worn parts or rolls. Check for obstructions or contamination. Clean or replace as necessary. 2 The skewed image I Check the Registration Sensor. Go to step 3. occurs on prints fed Check actuation and for from all trays. obstructions or contamination. Clean or replace as necessary. I Check the Registration Rolls. Clean or replace if necessary. I Check the Transfer Roller Roller and bearings. Clean or replace if necessary. I Check the Print Cartridge. Replace if necessary. I Check the Chute Transport Assembly. Check for obstructions or contamination. Clean or replace as necessary. 3 The skewed image I Check the MPT Feed Rolls. Go to step 4. occurs on prints fed Clean or replace if necessary. from the MPT Tray. I Check the MPT Retard Pad. Clean or replace if necessary. I Check the MPT Guide. Check for obstructions or contamination. Clean or replace as necessary. I Check the Registration Sensor. Check actuation and for obstructions or contamination. Clean or replace as necessary. 4 The skewed image I Check the Tray 1 Feed Rolls. Go to step 5. occurs on prints fed Clean or replace if necessary. from Tray 1. I Check the Tray 1 Nudger Roller. Clean or replace if necessary. I Check the Tray 1 Retard Roller. Clean or replace if necessary. Check the feed chute between Tray 1 and the Registration Rolls. Check for obstructions or contamination. Clean as necessary. 3-80 Phaser 4400 Laser Printer Service Manual