Cleaning and Maintenance 6 - 9 OKIFAX 5300/5600 Serv Man, P/N 592783016.5 Self-Diagnosis Test1. PurposeTo check ROMs, RAMs and printing function.2. ProcedureThe display shows:←Operations:To begin, press SELECT FUNCTION key onceand COPY key twice in the standby mode. (With nomessage in the memory)Press key.←←←Press key.←Press key to activate self-diagnosis.←(Figure 6.5.1 shows the printed data.)TECH. PROGRAMMINGYES(←/1-4) NO(→)1:LOCAL TESTYES(←) NO(→/1-4)1:SELF DIAGNOSISYES(←) NO(→/1-8)CPU PROG1 PROG2XXXX XXXX XXXX1:SELF DIAGNOSISEXCUTING(Display for 3 seconds)(Self diagnosis data is printing.)1:SELF DIAGNOSISPRINTING