Xerox 4400DT Service Manual - Page 83
Main Motor Failure Troubleshooting Procedure cont'd., Actions and Questions
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Main Motor Failure Troubleshooting Procedure (cont'd.) Step Actions and Questions Yes No 3 1. Remove the Fuser Assembly (RRP 6.2 on Replace the Go to step 4. page 6-66). 2. Manually rotate the rotor of the Motor clockwise. Fuser Assembly Does the rotor of the Main Motor rotate smoothly? (RRP 6.2 on page 6-66). 4 Remove the Main Motor (RRP 8.1 on page 6-84). Manually rotate the rotor of the Motor clockwise. Does the rotor of the Main Motor rotate smoothly? Replace the Main Drive Gear Assembly (RRP 8.2 on page 6-85) Replace the Main Motor (RRP 8.1 on page 6-84). 5 Open the Front Cover and remove the Print Cartridge. Go to step 6. Replace the Rotate the Metal Registration Roller manually. Registration Do the Metal and Rubber Registration Rolls rotate smoothly? Rolls (RRP 5.6 on page 6-62) or clutch (RRP 5.5 on page 6-62), as necessary. 6 1. With the Front Cover open, cheat the Front Cover Go to step 7. Go to RRP Interlock. 8.1 on 2. Enter Service Diagnostics and select Motor/Fans Tests. 3. Scroll to Main Motor and press OK. 4. Visually inspect the Main Motor and Main Drive Gears. page 6-84 and RRP 8.2 on page 6-85. Do the Main Motor and drive gears run smoothly and are all drive gears in good condition? 7 1. Press the Back key twice to return to top Menu. 2. Select Main Motor+Clutches/Sol Tests. 3. Scroll to Motor+MPT Sol and press OK. Does the MPT Feed Roller Assembly rotate smoothly? Go to step 8. Replace the MPT Feed Roller components as necessary (RRP 4.2, page 6-45/ RRP 4.3, page 6-47). 8 Scroll to Motor+Tray 1 Turn Roll and press OK. Go to step 9. Repair or Note: If optional feeders are installed, all turn rollers should actuate when you press OK. replace the appropriate Turn Roller Do all Turn Roller Shafts rotate smoothly? Assembly (RRP 3.2, page 6-29 or RRP 11.8, page 6-127). 2-46 Phaser 4400 Laser Printer Service Manual
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