Action Yes No
Step 5
a Enter the Diagnostics menu, and then navigate to:
Printer diagnostics & adjustments > Sensor tests
b Find the sensor (Input).
Does the sensor status change while toggling the sensor?
Go to step 8. Go to step 6.
Step 6
Check the sensor cable for proper connection, and then reseat if
necessary.
Does the problem remain?
Go to step 7. The problem is
solved.
Step 7
Replace the isolation unit. See
“Isolation unit removal” on
page 371.
Does the problem remain?
Go to step 8. The problem is
solved.
Step 8
Perform a print job.
Does the problem remain?
Contact the next
level of support.
The problem is
solved.
240 paper jams
240 paper jam messages
Error code Description Action
240.06 Paper never arrived at the sensor (MPF/pass-
through).
See
“Sensor (MPF/pass‑through): Paper
(MPF tray) failed to arrive service check” on
page 106.
240.23 Paper fed from tray 2 was picked but it never
arrived at the sensor (MPF/pass-through).
See
“Sensor (MPF/pass-through): Paper
(tray 2) failed to arrive service check” on
page 108.
240.33 Paper fed from tray 3 was picked but it never
arrived at the sensor (MPF/pass-through).
See
“Sensor (MPF/pass-through): Paper
(tray 3) failed to arrive service check” on
page 110.
240.43 Paper fed from tray 4 was picked but it never
arrived at the sensor (MPF/pass-through).
See
“Sensor (MPF/pass-through): Paper
(tray 4) failed to arrive service check” on
page 112.
240.15 Paper fed from tray [x] never cleared the sensor
(MPF/pass-through).
See
“Sensor (MPF/pass‑through): Paper
failed to clear service check” on page 105.
240.25
240.35
240.45
5028
Diagnostic information
104
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