Lexmark X746de - Scanner Locked Error Service Check

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292.01 Scanner locked error service check
7
1. Remove the ADF motor side cover.
2. Check the cabling (ADF front assembly to
scanner ICC card) (A).
Is the cable damaged?
Go to step 8. Replace the cable.
8
1. Remove the left cover. See “ADF motor
side cover removal” on page 4-212.
2. Check the cabling (scanner MDC card to
scanner ICC card) (A).
Is the cable damaged?
Replace the ICC card. See
“Scanner ICC card
removal” on page 4-258
Replace the cable. See
“UICC cable removal” on
page 4-188.
Step Questions / actions Yes No
1 1. Check if the scanner lock is set to unlock.
2. Check the condition of the CCD module.
3. Check the condition of the carriage
transport belt.
4. Check if there is something that would
cause the CCD module to be obstructed.
Is the CCD path free of obstruction and
damage?
Go to step 2. Clear obstruction or
reinstall parts that are
dislodged.
2
1. Check the LVPS connection on the
system card, JLVPS1 and JLVPS2 for
proper connection.
2. Reseat cables and check the voltages on
on the JLVPS2 connectors:
- Red cable = 5V
- Yellow cable = 24V.
3. Check the voltages on JLVPS1:
- Yellow cable = 24V.
Are these voltages present?
Go to step 3. Replace the LVPS. See
“Low-voltage power
supply (LVPS) removal”
on page 4-115.
Step Questions / actions Yes No