Service manual

Chapter 5
5-15
5.4 Errors not Shown on the Display
5.4.1 General Errors
0002-1688
The unit does not power on.
(1) Check the power cord connection.
(2) Check the connection between the PCNT board (JPSU1) and power supply unit.
(3) Check the power supply unit's fuse (F1)
(4) Replace the power supply unit.
The display looks abnormal.
Nothing is displayed.
(1) Check the connection between the Operation panel unit and SPCNT board (JPANEL1).
(2) Replace the Operation panel unit.
(3) Replace the SPCNT board.
Part of the LCD panel does not display anything.
(1) Check the connection between the Operation panel unit and SPCNT board (JPANEL1).
(2) Replace the Operation panel unit.
(3) Replace the SPCNT board.
The keys do not work
(1) If the test mode can be used, check for faulty keys.
(2) Check the connection between the Operation panel unit and SPCNT board (JPANEL1).
(3) Replace the Operation panel unit.
(4) Replace the SPCNT board.
5.4.2 Printing problem
0002-1703
The paper is not fed properly.
The paper feed motor does not run.
(1) Check the connection from the paper feed motor to the sensor board (JLFM1).
(2) Check the connection from the sensor board (JEXT2) to the SPCNT board (JEXT1).
(3) Replace the paper feed motor.
(4) Replace the sensor board.
(5) Replace the SPCNT board.
The paper is not picked up from the auto sheet feeder.
(1) Check the ASF motor for foreign objects or damages.
(2) Replace the ASF unit.
(3) Replace the SENSOR board (Faulty PRS or PES).