Xerox 4400DT Service Manual - Page 173

Residual Image Troubleshooting Procedure (cont'd.) Step Actions and Questions Yes No 3 Inspect the Transfer Roller Assembly for contamination Go to step 4. Replace the and wear. Transfer Is the Transfer Roller free of contamination and wear? Roller Assembly (RRP 7.1 on page 6-79). 4 Warning: If the printer has been switched on, Go to step 5. Clean or the Fuser will be hot. replace the 1. Open the Rear Cover and remove the Fuser Assembly. 2. Rotate the fuser idler gear manually and inspect the Fuser Assembly (page 6-66). Heat Roller. 3. Open the fuser jam access cover. 4. Rotate the fuser idler gear manually and inspect the Pressure Roller. Are the Heat Roller and the Pressure Roller free of surface defects and contamination? 5 Replace the following, in order, until the defective component is found: I Transfer Roller Assembly (RRP 7.1 on page 6-79) I Fuser Assembly (RRP 6.2 on page 6-66) I HVPS PWB (RRP 9.6 on page 6-92) I Print Cartridge Side Guide (RRP 7.5 on page 6-83) Background There is toner contamination on all or part of the page. The contamination appears as a very light gray dusting. s4400_309 Initial Actions I Inspect the printer paper path for items such as staples, paper clips and paper scraps. 3-76 Phaser 4400 Laser Printer Service Manual