Code :

Code: 01
Description: TEL LINE CANNOT BE ENGAGED (NO DIAL TONE)
Causes: • When you pick up the handset: 1 Check line cord connection and P3(LIU) connection. 2 Check hook switch of H/B Cradle and D2(LIU) connection. 3 Check the circuit around R2, Q1 and Q2 of LIU PBA. 4 Can’t you hear dial tone though the line is engaged? • When you press OHD key: 1 Check line cord connection. 2 Check U7(main PBA), main LIU harness, and P1(LIU PBA). 3 Check relaying operation of LIU PBA : Is the control signal of U18-49(main) high?
Remedy: • 1 Insert it correctly into the connection jack called “line”. 2 Replace defective parts. 3 Replace LIU PBA. 4 Replace the handset. • 1 Insert it correctly into the connection jack called line. 2 Replace defective parts. 3 Replace main PBA IF the control signal of U18-49(main) is low. Replace LIU PBA if high but phone line cannot be connected

Code: 02
Description: Cannot MF dial.
Causes: • Check U7(main PBA), main-LIU harness, and P1(LIU PBA) • Check signals of U16-122, 123.
Remedy: • Replace defective parts. • Replace main PBA if the signals of U16- 122(LIU_TXD) are abnormal. Replace LIU PBA if the signals of U16-123(LIU_RXD).

Code: 03
Description: MF dial is possible but not DP dial.
Causes: • Check DP control signal of U3-27 of LIU PBA and the circuit around R2, Q1 and Q2. • Check connection of R43 of LIU PBA.
Remedy: • Replace LIU PBA. • Replace LIU PBA.

Code: 04
Description: Defective fax transmission
Causes: • Check U7(main PBA), main LIU harness, and P1(LIU PBA). • a Is the external phone hooked off? b Is the output of U2-4(LIU PBA) low? • Check ‘hook off’. : Refer to ‘TEL LINE CANNOT BE ENGAGED’. • Check the control signals of U15-122, 123. • Check transmission path.: Check output of U15-44(main PBA) and input of U3-3(LIU PBA). • Check reception path.: Check output of U3-40(LIU PBA) and input of U15-45(main PBA).
Remedy: • Replace defective parts. • a Hook on the external phone correctly. b Replace LIU PBA if low. • Refer to TEL LINE CANNOT BE ENGAGED. • Replace main PBA if the signals of U15-122 (LIU_TXD) are abnormal. Replace LIU PBA if the signals of U15-123 (LIU_RXD) are abnormal. • Replace main PBA, if abnormal. • Replace LIU PBA if the output of U3-40 (LIU PBA) is not confirmed. Check the circuit around U6 (main PBA) if the input of U21-45 (main PBA) is not confirmed though the output of U3-40 (LIU PBA) is confirmed.

Code: 05
Description: Defective automatic fax reception
Causes: • Is the ring checked? Check ring pattern at U18-84(main PBA). • Refer to Defective Transmission.
Remedy: • Replace LIU PBA if it cannot be checked. • Refer to Defective Transmission.

Code: 06
Description: ASF feeds paper but paper is not supplied to the engine.
Causes: • Check if actuator feed operates perfectly. • Check if paper sensor is normal.
Remedy: • Replace actuator-feed, spring, or other defective parts. • Replace the paper sensor.

Code: 07
Description: ASF cannot feed paper.
Causes: • Check if stopper clutch operates perfectly. • Check if too much paper has been supplied. • Check if pickup roller rubber of the ASF is worn out.
Remedy: • Replace stopper clutch assembly. • Supply appropriate amount of paper(130 sheets of normal copying paper). • Replace pickup roller rubber.

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