Lexmark Optra S Service Manual - Page 129

4059-XXX Print Quality - Toner on backside of printed page Service Tip: This is generally caused by loose toner in the machine in the paper path being carried through the printer on the backside of the paper. FRU 1 Fuser Assembly 2 Transfer Roll Transfer Plate Assembly Action Toner is being carried out on the backside of the media. This problem is generally caused by a toner buildup on the fuser hotroll or backup roll. Check the fuser hotroll and backup roll for any noticeable buildup of toner. Repair as necessary. Check the transfer roll for any signs of toner buildup or loose toner around the area of the transfer plate assembly. Clean the area and run another copy. If the problem continues, replace the FRUs in the following order: HVPS engine board Smart Cartridge Service Check Note: If you are unable to clear a "32-Unsupported Cartridge" User Error Message, make sure an Optra Se print cartridge is correctly installed in the printer. The cartridge is easily identified by the smart chip located on the top right side of the cartridge. Install another Optra Se cartridge before attempting to troubleshoot the printer. Check to make sure the smart cable is properly connected to J21 on the engine board. Check the print cartridge for any signs of damage or improper installation of the smart chip. Also check to make sure there is proper contact between the smart chip and the smart cartridge contacts. Diagnostic Information 2-102