Samsung ML-7300 Series Service Manual page 50

Troubleshooting
Error status
Internal Error 10
(Scanner Error)
Jam 0
1. Paper is not
exitted from cassette
2. Paper is stopped
before feed sensor.
Jam 1
"Paper is stopped
on feed sensor"
5-6
Check
1. Check the DC supply for laser
scanning unit
2. Check laser scanning unit
- Refer to DCU mode "05"
3. Check the cable connection and defect
4. Engine board.
1. 1st cassette feeding
1) Check the operation of Pick-up Clutch
- Refer to DCU mode "06"
2) Check PAD of Pickup roller.
3) Check the Gear of Pickup Unit.
4) Check paper installation in cassette
2. Multi purpose feeding
1) Check the operation of
multi purpose Clutch
- Refer to DCU mode "13"
- Check MP solenoid.
The resistance of MP solenoid 70~80Ω
2) Check PAD of Pickup roller
3) Check Joint board
Measure the CN503-2pin
4) Check the Gear of multi Purpose
Pickup Unit
5) Check cable connection or wire defect.
3. Second cassette feeding
1) Check Pickup Clutch for SCF.
- The resistance of SCF solenoid: 70~80Ω
2) Check PAD of Pickup roller
3) Check the Gear of pickup Unit
4) Check paper installation in cassette.
5) Check cable connection or wire defect.
1. Check the Feed sensor.
- Refer to DCU mode "08"
2. Check the Feed Sensor actuator
3. Check the paper installation in
cassette.
Solution
1. If +5Vs for laser diode isn't supplied.
check the cover switch assembly for
+5Vs and fix it,
2. If the DC power supply for laser
scanning unit has normal operation,
replace the laser scanning unit
3. Replace cable and connect properly.
4. If not normal operation after replacing
it, replace the engine board.
1. Replace the Pick-up solenoid on
Engine Board.
- Refer to "4-11"
2. Replace PAD.
- Refer to "4-7, 6-5"
3. Replace Pickup Unit Gear.
- Refer to "4-7, 6-5"
4. Install paper properly.
1. Replace MP solenoid.
If not normal operation after replacing
it, replace the engine board.
- Refer to "4-11".
2. Replace PAD
- Refer to "4-9, 6-4"
3. Replace Joint board.
- Refer to "4-4"
4. Replace Pickup Unit Gear.
5. Connect the cable correctly
or replace the cable.
1. Replace the pick-up clutch for SCF.
If not improved, replace SCF board
2. Replace PAD.
- Refer to "6-11"
3. Replace Pickup Unit Gear.
- Refer to "6-11"
4. Reinstiall paper properly.
5. Connect the cable correctly, or
replace the cable.
1. Replace Feed Sensor.
- Refer to "4-11"
2. Replace Feed Sensor actuator.
- Refer to "4-11, 6-2"
3. Reinstall paper properly.
Samsung Electronics