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 213 and
“Separator pad
removal” on page
221.
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 169.
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 171.
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.
Step 6
Check the jam access cover if it is blocking the input sensor.
Is it blocking the input sensor?
Replace the jam access
cover. See “Jam access
cover removal” on
page 214
Go to step 7.
Step 7
Check the input sensor cable for proper connection.
Is it properly connected?
Go to step 8. Reseat the cable.
4514-630, -635, -636
Diagnostic information
61
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