Xerox 4400DT Service Manual - Page 59
Jam at MPT; Open Front Cover to Clear., E2-#M: Feed Jam
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Envelope Feeder Jam Troubleshooting Procedure (cont'd.) Step Actions and Questions Yes No 7 Perform Registration Sensor on page 3-20 to check the Replace the Replace the Registration Sensor. Engine Logic Registration Is the Registration Sensor operating correctly? Board (RRP 9.3 on Sensor (RRP 5.4 on page 6-89). page 6-61). Jam at MPT; Open Front Cover to Clear. (E2-#M: Feed Jam) E2-0M: Paper arrives at REG sensor early. E2-1M: Paper arrives at REG sensor late. Feed Jam Procedure Step Actions and Questions Yes No 1 1. Switch the printer power OFF. Go to step 2. Clean the 2. Open the Front Cover. 3. Check the MPT Chute for contamination or obstructions. MPT and remove the paper or Is the MPT free of contamination, paper, or other obstruction. obstructions? 2 Check the MPT Feed Roller for contamination and Go to step 3. Replace the wear. MPT Feed Is the feed roller clean and in good condition? Roller (RRP 4.3 on page 6-47). 3 1. Enter Service Diagnostics and select Solenoid Tests. Go to step 4. Go to MPT 2. Scroll to MPT and press OK. Pick Up Can you hear the solenoid energize? Solenoid on page 3-30. 4 1. Open the Front Cover and cheat the Front Cover Go to step 5. Check, re- Interlock. 2. From the Service Diagnostics menu select Motors/Fans Tests and press OK. 3. Scroll to Main Motor and press OK. pair, or replace the Drive Gear (PL 5.1 on Do the MPT drive gears rotate smoothly? page 7-14), Main Drive Gear Assem- bly (RRP 8.2 on page 6-85), or Main Mo- tor Assem- bly (RRP 8.1 on page 6-84) as neces- sary. 2-22 Phaser 4400 Laser Printer Service Manual