Test
Action if Yes
Action if No
8. Is the scan start line of the SBU well adjusted ?
Go to step 9.
Adjust the scan start
position.
9. Check the connection to the tx motor. Does the
FDU both:
a) 24V to the tx motor,
b) output stepper motor drive phase signals to the
motor?
Replace the FCE.
Replace the FDU.
2. Double Feed
Test
Action if Yes
Action if No
1. Was the document placed in the feeder carefully and in the correct manner?
2. Clean or replace the separation rubber plate.
3. Is the operation panel closed at each side ?
3. Jam
Test
Action if Yes
Action if No
1. Check that the document is not curled seriously or not longer than 600 mm.
2. Clean the rollers in the feeder/scanner with a soft cloth and water.
3. Check for blockages in the document feed path. Check the scanner drive mechanism.
4. Does the scan line sensor actuator move correctly ? Go to test 5.
Reassemble or replace the
actuator.
5. Do the two red LEDs on the lefthand side of the
LED array light correctly, without a document in the
feeder ?
Go to step 8.
Go to step 6.
6. Does the FDU 5V output correctly ?
Replace the LED array.
Go to step 7.
7. Does the PSU 24V?
Check the PSU-FDU
connection or replace the
FDU.
If the wall socket is good,
replace the PSU.
8. Does the CCD on the SBU have defective ele-
ments in the scan line sensor detection part ?
Replace the SBU.
Replace the FCE.
4. Skew
Test
Action if Yes
Action if No
1. Clean the rollers in the feeder/scanner with a soft cloth and water.
2. Clean or replace the separation rubber plate.
3. Is the operation panel closed at each side ?
5. Dirty Document
Test
Action if Yes
Action if No
1. Clean the rollers in the feeder/scanner with a soft cloth and water.
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