Lexmark Optra C710 Service Manual - Page 154

5016-001 FRU 5 HVPS 6 Printhead Action Be sure the HVPS is correctly installed and securely mounted to the HVPS mounting bracket and grid block assemblies. • If correct, remove the HVPS and be sure the high voltage contacts align with the contacts on the HVPS. • Look for signs of pitting or damage. The printhead can cause this problem, but should only be replaced after a new toner cartridge(s) or ITM has been replaced. Offset Print Service Check FRU 1 Cleaning Unit 2 Fuser Assembly Action Check the cleaning unit for proper installation and contamination. If signs of contamination or damage exist, replace the cleaning unit. Check the fuser assembly for signs of contamination of the hot roll or backup roll. If signs of contamination or damage exist, replace the fuser assembly. 2-88 Service Manual