2-46 Service Manual
Option card service check
USB port service check
1. Perform a print test to make sure the printer prints correctly. Verify that the indicator light is on, then print
the menu settings by Menu Settings Page from the Reports Menu in the menus.
2. Be sure the printer USB cable is designed for bidirectional printing.
3. Be sure the user’s application is set up correctly.
4. If the internal print test page prints correctly, the user’s application/printer driver is set up correctly, and the
USB cable is installed, but the printer still fails to print on command from the host computer, then replace
the controller board.
5. Check the USB cable for continuity.
Option card service check
FRU Action
Option cards
Controller board
Option card connection
cable
Warning: Do not
replace the engine
board and controller
board at the same
time. Each board
contains the printer
settings. When either
of these boards is new,
it obtains the settings
from the other board.
Settings are lost when
both are new and
replaced at the same
time.
Card
Remove all the option cards from the device.
Install each card individually. Restart the MFP after each card is installed.
Remove the card and repeat the previous step with a different card till all cards are
checked.
When a faulty card is found, replace the card. See “Option board installs and removals”
on page 4-102. If the error persists after replacing the option card, replace the controller
board. See “Controller board removal” on page 4-8.
If there are no errors found testing the cards individually, install the cards on at a time.
Restart the MFP after each card is installed.
Cables
If the cards do not trigger an error, check the option card connection cables for continuity.
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