2-12 (E)
UP-D898MD/X898MD
2-2-9. Door open/close operation failure
The door open/close operation
failure occurs.
$
Measure the signal voltage using the oscilloscope and so forth with no printing paper loaded in the tray.
Replace the MA-195 board.
(Refer to Section 3-1.)
No
Yes
No
Yes
Replace the SE-1142 board.
(Refer to Section 3-3.)
When the door open/close operation
is performed, is the voltage at pin 2 of
CN1101 on the MA-195 board or the
voltage at pin 2 of CN601 on the
SE-1142 board changed to approx.
0 V/approx. 3.3 V?
Is the harness connecting CN1101
on the MA-195 board and CN202
on the SE-1142 board connected
correctly?
Check the connection of the
harness. If the symptom persists,
replace the defective harness.
(Refer to Section 5.)
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