Lexmark Optra T Service Manual - Page 136

4069-XXX erase lamp assembly installed. Check to make sure the correct level HVPS is installed. Go to "Printer Serial Label" on page 7-2 to identify the printer service level. FRU 1 Transfer Roll Assembly 2 Left Transfer Arm Assembly 3 Right Transfer Arm Assembly Action Check the transfer roll for any signs of toner buildup, surface damage to the roll, oil or other contaminants on the surface of the roll. Replace the transfer roll as necessary. Check the left transfer roll arm assembly to make sure it is fastened and locked in the down position. If the arm is not locked down, check to ensure the arm is not broken and will lock into the EP frame correctly. Check the left transfer arm assembly spring for proper operation. Check the right transfer arm assembly to make sure it is fastened and locked in the down position. If the arm is not locked down, check to make sure the arm is not broken and will lock into the EP frame correctly. Check the right transfer arm assembly spring for proper operation. For any background problems, check to ensure the contact to the HVPS board is correct and that there is approximately 0 ohms resistance between the transfer roll shaft and the HVPS contact. If correct, go to "Print Quality - Background" on page 2-97. 2-108 Service Manual