Actions Yes No
Step 8
Check the voltages from connector JMOD2 on the controller
board. Check Pin 1, 9, 12 and 13 for +3.3VDC. Pin 10 for +5VDC. Pins
2, 4, 5, 6, 7, and 8 are grounds.
Are the signals or voltages present?
Replace the fax card.
See
“Modem
removal” on
page 288.
Replace the
controller board. See
“Controller board
removal” on
page 282.
Blank spaces on incoming fax service check
Actions Yes No
Step 1
Have a fax sent from another machine.
Does the problem remain?
Go to step 2. The problem is
solved.
Step 2
Attach the MFP to a dierent phone line.
Does the problem remain?
Go to step 3. The problem is
solved.
Step 3
Print a test page.
Does the image quality issue remain?
Go to step 4. The problem is
solved.
Step 4
Install a new toner cartridge.
Does the problem remain?
Contact the next
level of support.
The problem is
solved.
Stretched words on incoming fax service check
Actions Yes No
Have a fax sent from another machine.
Does the problem remain?
Contact the next
level of support.
The problem is
solved.
Fax reception service check
Note: Before performing this service check, verify that the correct country code for the MFP is selected.
This setting must match the country in which the MFP is used to transmit and receive faxes. If the
setting is wrong, then change the modem settings in the Fax/SE menu. See step 14. These settings
should only be performed with guidance from your second-level support.
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Diagnostic information
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