Introduction; Checking The Electrical Components - Minolta magicolor 2300 Series Service Manual

1.

Introduction

• Information required for troubleshooting and steps that must be performed are described
in this chapter.
1-1.

Checking the electrical components

• If a paper misfeed or malfunction occurs, perform the following operation to check the
condition of the electrical components.
(1) Sensor
Step
Does the input signal of the master board change (H→L,
1
L→H) when the sensor light is interrupted?
(2) Switch
Step
Does the input signal (NO) of the master board change from
1
L to H when the switch is turned on?
Check
4025T520AA
Check
COM
Not Use
NO
119
Result Remedy
NO Replace the sensor.
Replace the master
YES
board.
4025T521AA
Result Remedy
NO Replace the switch.
Replace the master
YES
board.
4025T523AA