Xerox 4400DT Service Manual - Page 60
Jam at Front; Open Front Cover to Clear., Registration Jam Troubleshooting Procedure
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Feed Jam Procedure (cont'd.) Step Actions and Questions Yes No 5 1. Scroll to Main Motor + Clutch/Sol Tests and press Check the Remove the OK. 2. Select Main Motor + MPT Sol and press OK. Registration MPT Chute Sensor Assembly Do all of the following occur? (Registration (RRP 4.1 on I The Feed Roller Shaft rotates? I The Pick-up Cams move and allow the Bottom Plate to contact the Feed Roller? Sensor on page 3-20). page 6-44) and repair or replace I The Feed Roller Shaft stops after one complete revolution? components as necessary. 6 1. Check the Registration Sensor (Registration Sensor If the Follow the on page 3-20). problem repair advice Is the Registration Sensor good? persists, replace the in the Registration Engine Logic Sensor Board (RRP check. 9.3 on page 6-89). Jam at Front; Open Front Cover to Clear. (E3-#: Registration Jam) E3-1: Paper is late to the Exit Sensor or paper is late off the Registration Sensor. E3-2: Registration Sensor is actuated at power-on. Registration Jam Troubleshooting Procedure Step Actions and Questions Yes No 1 1. Switch the printer power OFF. Go to step 2. Clean compo- 2. Open the Front Cover and remove the Print nents and Cartridge. 3. Check the printer for contamination, paper scraps, or other obstructions. remove all obstructions. Is the paper path clean and free of obstructions? 2 1. Open the Rear Cover. 2. Remove the Duplex unit if installed. 3. Open the Fuser Access Cover. 4. Check for contamination, paper scraps, or other obstructions. Go to step 3. Clean components and remove all obstructions. Is the paper path clean and free of obstructions? 3 1. Remove Fuser. 2. Rotate the Fuser Gear. Does the Fuser Idler Gear rotate smoothly? Go to step 4. Replace the Fuser Assembly (RRP 6.2 on page 6-66). 4 Check the paper in all trays. Is the paper loaded in the paper trays damp, wrinkled, or damaged? Replace with Go to step 5. fresh, dry paper. Phaser 4400 Laser Printer Service Manual 2-23