Lexmark X746de - Tray 1 Missing Service Check

Diagnostic information 2-157
7526
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Print quality—vertical banding
Replace the developer cartridge.
Tray 1 missing service check
3
Turn the printer off, and then check the
continuity of the HVPS cable.
Go to step 4. Replace the cable
assembly.
Is there continuity?
4
Replace the HVPS. See “High-voltage
power supply (HVPS) removal” on
page 4-110.
Did this solve the problem?
Problem resolved. Replace the system board.
See “System board
removal” on page 4-157.
Step Questions / actions Yes No
1 1. Check if the tray assembly can close
properly.
2. Make sure the paper path is cleared of
jams.
3. Check for any damage.
Does the tray assembly close properly?
Go to step 3. Go to step 2.
2
1. Clear the tray path of any obstruction.
2. Check for damage on the tray.
Is the tray free of damage?
Go to step 3. Replace the tray.
3
1. Remove the tray and inspect the narrow
media flag on the paper pick assembly for
any damage.
2. Reseat the connector Jtray1 and JFDPCK
on the system board, then check for any
damage on the connectors.
Are the flag and cable connectors free of
damage?
Go to step 4. Replace the paper pick
assembly. See “Paper pick
mechanism assembly
removal” on page 4-130.
Step Questions / actions Yes No
Pin 24
Pin 23
Pin 1Pin 2
Pin 2
Pin 1
Pin 23
Pin 24