Lexmark E320 Service Manual - Page 129

4500 Transfer roll service check FRU Transfer bearing Transfer roll Action Check transfer roll area for debris and clean as necessary. Unplug the printer and check for continuity between the T solder joints (lower right side of the HVPS) and the right side of the transfer roll shaft. • If continuity is not indicated, remove the left bearing and check continuity between the solder joint and spring loaded pin. - If continuity fails, replace the HVPS contacts. - Clean bearing or replace if necessary. • If continuity is confirmed, check the bearing springs at each end of the transfer roll. They should provide even forces. - Replace bearings if necessary. - Inspect the roll for signs of wear or damage and replace if necessary. Diagnostic information 2-99