Maintenance & Troubleshooting
Samsung Electronics
7-10
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7-4-6 Malfunction on Copy
START
See chart7-4-4
See chart 7-4-5
1
1
Load document in
feeder
Replace CIS
Replace the main b'd
Replace the
scan b'd
Check harness
Replace the
power supply
Replace the
harness
Measure
LED +12V on
scan b'd (CN 3-9)
+12 V?
Good?
Copy produced?
Press the COPY
button
Document fed?
CIS LED on?
Copy works
properly?
Normal?
Check
CIS clock (P2-16)
in the main board
5V
0V