Lexmark Optra S Service Manual - Page 47

4059-XXX User Error Message 80 Scheduled Maintenance 81 Engine Code CRC Failure 88 Toner Low Explanation The operator panel displays this message at each 250K page count interval. It is necessary to replace the fuser assembly, transfer roller, compensator pick-rolls and charge roll at this interval to maintain the print quality and reliability of the printer. The parts are available as a maintenance kit. For more information, go to "Scheduled Maintenance (2420/2450/2455/ 3455)" on page 6-2. This error displays when the microcode to be programmed in the engine flash code module has failed a CRC check. Press Go to clear the message. The microcode data is discarded and must be re-transmitted from the host computer. This error displays when toner low occurs and the toner low alarm is activated. Press Go to clear this message. User Line 2 Messages If none of the conditions exist that are listed in the following table, line 2 is blank. If any of the messages in the table are displayed the following actions can be taken: Press Menu> or