Action Yes No
Step 4
POR into the Diagnostics menu and perform a sensor test:
Diagnostics Menu > Base Sensor Test > Input.
Does the sensor state on the control panel display change when it is
toggled?
Go to step 5. Replace the input
sensor. See “Duplex
sensor and input
sensor removal” on
page 275.
Step 5
Does the error remain?
Contact the next level
of support.
The problem is solved.
Sensor (input) early/late arriving service check
Action Yes No
Step 1
Check the paper source.
Is the paper from the MPF?
Go to step 2. Go to step 5.
Step 2
Check the MPF pick roller and separator pad for damage and
contamination.
Are they free of damage and contamination?
Go to step 3. Replace the MPF pick
roller and separator
pad. See “MPF pick
roller removal” on
page 263 and
“Separator pad
removal” on page
269.
Step 3
Check the MPF solenoid for proper operation:
a Remove the left cover.
b POR into the Diagnostics menu and perform a feed test:
Diagnostics Menu > Input Tray Tests > Feed Test >
Multipurpose feeder
c Check if the MPF solenoid moves when doing the feed test.
Does it move when doing the feed test?
Go to step 4. Replace the MPF
solenoid. See “MPF
solenoid removal” on
page 213.
Step 4
Make sure the MPF gearbox spring is properly installed and free of
damage. Check the MPF gearbox for wear or damage.
Are they free of wear or damage?
Go to step 5. Replace the MPF
gearbox. See “MPF
gearbox removal” on
page 215.
Step 5
Check the input sensor area for jammed media fragments.
Is the paper path free of partially fed or jammed media?
Go to step 6. Clear the paper path of
any media fragments.
7015
Diagnostic information
53
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