%6.5.2 LCD message troubleshooting6.5.2 LCD message troubleshootingIf problems are not correctable from the LCD message trouble list, follow the troubleshootingflowcharts given here to deal with them.No. Trouble Flowchart number1. The printer does not worknormally after being turnedon.12. Jam alarmPaper input jam (1st Tray)Paper input jam (Frontfeeder)Paper feed jamPaper exit jam2-12-22-32-43. Paper size error 34. Fusing unit error 45. SSIO (Synchronous SerialI/O) error(Error No. 7, excepting I/Ftime-out between the printerand an optional tray)56. I/F time-out between theprinter and the operator panel67. I/F time-out (no response)between the printer and anoptional tray (High CapacitySecond Paper Feeder, Powerenvelope feeder, etc.)58. Messages cannot be receivedthrough the parallel interface.79. Messages cannot be receivedthrough the serial interface.810. Data cannot be receivedthrough the OKI HSPinterface.9Note: When replacing the Control board, install the EEPROM from the old Control board, onto the newcontrol board.
