Causes: • Check the scanner glass and any mechanical disturbance. • Check the motor driver in Driver PBA.
Remedy: • Check the scanner glass is correctly located and clean, check that the CCD carriage moves smoothly. • If any driver is defective, replace the Main PBA. - U55 or U56-19 = 0V to 24V swing signal when operating.
Code: 08
Description: TEL LINE CANNOT BE ENGAGED (NO DIAL TONE)
Causes: • When you press the “OHD” key: a) Check line cord connection. b) Check MAIN LIU harness, and CN1(LIU PBA). c) Check relay operation of LIU PBA: Is the control signal of CN20-7(main) low?
Remedy: a) Insert plug into the socket named “line”. b) Replace defective parts. c) Replace main PBA IF the control signal of CN20-7(main) is high. Replace LIU PBA if high but phone line cannot be connected.
Code: 09
Description: Cannot MF dial
Causes: • Check CN20 (main PBA), main- LIU harness, and CN1 (LIU PBA)
Remedy: • Replace defective parts.
Code: 10
Description: MF dial is possible but not DP dial.
Causes: • Check DP control signal of CN20-11 of MAIN PBA and the circuit around R15. U6 and Q2 of LIU PBA.
Remedy: • Replace LIU PBA.
Code: 11
Description: Defective FAX transmission
Causes: • Check CN20 (main PBA), main LIU harness, and CN1(LIU PBA). • Is the external phone off the hook? • Check ‘hook off’: Refer to ‘TEL LINE CANNOT BE ENGAGED’ above. • Check the control signals of CN20-11. • Check transmission path: Check output of CN20-3.4 and T2-4(LIU PBA). • Check reception path: Check output CN1-1 (LIU PBA) and input of CN20-1(main PBA).
Remedy: • Replace defective parts. • Replace LIU PBA if low. • Refer to ‘TEL LINE CANNOT BE ENGAGED’ above. • Replace main PBA, if the signals of CN8-11 (MAIN PBA) is low. • Replace main PBA, if abnormal. • Replace LIU PBA if CN1-1(LIU PBA) is not confirmed. Replace main PBA if CN20- 1(MAIN PBA) is not confirmed.
Code: 12
Description: Defective automatic FAX reception
Causes: • Is the ring checked? Check ring pattern at CN1-9 (LIU PBA). • Refer to ‘Defective FAX Transmission.’
Remedy: • Replace LIU PBA if it cannot be checked. • Refer to ‘Defective FAX Transmission’.