Field Service Ver. 1.0 Apr. 2005
Troubleshooting
3.
Introduction
• Information required for troubleshooting and steps that must be performed are described
in this chapter.
3.1
Electrical Components Check Procedure
• If a paper misfeed or malfunction occurs, perform the following operations to check the
condition of the electrical components.
3.1.1
Sensor
Step
Does the input signal of the control board change when the
1
sensor light is interrupted? (H → L, L → H)
Check
4025T520AA
3. Introduction
Result
Action
NO
Replace the sensor.
Replace the control
YES
board.
4025T521AA
7