Canon MP 700 Service Manual

Contents

4-31MultiPASS MP730/MP700 Chapter 4: Maintenance and Service4.3.5 Test mode function problems• Faulty operation panel test.The LED panel does not display correctly.(1) Check the connection between the operation panel unit and the SPCNT board(JPANEL1).(2) Replace the operation panel unit.(3) Replace the SPCNT board.The LED lamp fails to go ON.(1) Check the connection between the operation panel unit and the SPCNT board(JPANEL1).(2) Replace the operation panel unit.(3) Replace the SPCNT board.The key on the operation panel fails to work properly.(1) Check the connection between the operation panel unit and the SPCNT board(JPANEL1).(2) Replace the operation panel unit.(3) Replace the SPCNT board.• Faulty contact sensor test.The LED of the contact sensor fails to go ON properly.(1) Check the connection between the contact sensor and the SPCNT board (JCS1).(2) Replace the contact sensor.(3) Replace the SPCNT board.• Faulty DRAM test.The indication “READ & COMPARE NG” appears.(1) Perform the DRAM test again. In case “READ & COMPARE NG” still appears,replace the SPCNT board.• Faulty Sensor test.Paper edge sensor fails to operate properly.(1) Check whether the actuator of paper edge sensor is in correct position.(2) Replace the sensor board.Cover sensor fails to operate properly.(1) Check whether the actuator of cover sensor is in correct position.(2) Replace the SPCNT board.