Action Yes No
Step 24
a Remove the optional tray left cover. See “250‑ and 550-sheet
tray left cover removal” on page 496.
b Check the sensor cable on the optional tray controller board
for proper connection.
Is the cable properly connected?
Go to step 26. Go to step 25.
Step 25
Reseat the cable.
Does the problem remain?
Go to step 26. The problem is
solved.
Step 26
Replace the sensor. See
“Sensor (250‑ and 550-sheet tray pick
roller index) removal” on page 508.
Does the problem remain?
Go to step 27. The problem is
solved.
Step 27
a Remove the optional tray left cover. See “250‑ and 550-sheet
tray left cover removal” on page 496.
b Check if the aected source tray paper feeder and its actuators
are functional, properly installed, and free of damage.
Are the paper feeder and its components functional, properly
installed, and free of damage?
Go to step 29. Go to step 28.
Step 28
Reinstall or replace the paper feeder. See
“250‑ and 550-sheet
tray paper feeder removal” on page 504.
Does the problem remain?
Go to step 29. The problem is
solved.
Step 29
Make sure that the aected source tray controller board is properly
installed. Reseat all the cables on the controller board.
Does the problem remain?
Go to step 30. The problem is
solved.
Step 30
Check the source tray controller board and its connector pins for
damage.
Are the tray controller board and its connectors free of damage?
Contact the next
level of support.
Go to step 31.
Step 31
Replace the source tray controller board. See
“250‑ and 550-
sheet tray controller board removal” on page 506.
Does the problem remain?
Contact the next
level of support.
The problem is
solved.
4064
Diagnostics and troubleshooting
146
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