Action Yes No
Step 20
Check if the 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 22. Go to step 21.
Step 21
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 22. The problem is
solved.
Step 22
Make sure that the source tray controller board is properly
installed. Reseat all the cables on the controller board.
Does the problem remain?
Go to step 23. The problem is
solved.
Step 23
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 24.
Step 24
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.
Sensor (tray 4 pass‑through) late‑arriving or late-leaving jam service check
Action Yes No
Step 1
Check the paper path and trays for paper fragments and partially
fed paper.
Is the paper path free of paper fragments and partially fed paper?
Go to step 3. Go to step 2.
Step 2
Remove the paper fragments and partially fed paper.
Does the problem remain?
Go to step 3. The problem is
solved.
Step 3
Make sure that all the trays and tray inserts are properly installed.
Does the problem remain?
Go to step 4. The problem is
solved.
4064
Diagnostics and troubleshooting
177
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