Technical data

MD400 Scanner Pocket Service Guide 15
Table 8 Unit Diagnostics Tests
Indicators Action
RED GREEN
1. Power Supply Test
ON OFF NO ERROR
BLINK OFF Invalid test. Check Step 7 in
Table 7.
ALL OTHER Swap Scanner
4. ADF Operation
2
ON OFF NO ERROR
BLINK OFF Invalid test. Check Step 7 in
Table 7.
ALL OTHER
• Remove paper jams.
• Remove debris.
• Switch off the power and
swap the ADF.
2
Load the ADF with paper to check ADF operation using
test 4.
If the PC interface card has been replaced, ensure
that the jumper settings are correct, by checking
against the original.