Lexmark T522 Service Manual - Page 118

4520-xxx Print Quality - Blank Page FRU 1 Print Cartridge 2 High Voltage Contact 3 HVPS 4 Front Cable Harness HVPS Section Action Check the print cartridge for any signs of damage, especially the PC drum contact on the cartridge. Check the PC drum contact on the right side frame for damage, PC drum contact wear or contamination. If the contact is bent or damaged, replace the contact. Note: Inspect the HVPS PC drum contact on the board for any signs of damage or contamination. Check the fuse on the HVPS. If open, replace the HVPS. Check the voltages at J10 on the engine board. Measure the following voltages from connector J10 to printer ground: Printer Idle J10-5 measures +24 V dc Printer Printing J10-5 measures +24 V dc If the voltages at J10-5 are incorrect, replace the engine board. Check the front cable harness at J10 on the engine board and at CN1 on the HVPS to make sure the harness is connected properly. If connected properly, check the continuity of the cable harness. If there is no continuity, replace the front cable harness. 2-90 Service Manual