Actions Yes No
Step 8
Check the voltages from connector JMOD2 on the controller board. Check
Pin 4 and 5 for +3.3VDC. Pin 7 for +5VDC. 9, 11, 13, 15, 17, and 19 are
grounds.
Are the signals or voltages present?
Replace the fax card. Replace the controller
board. See
“Controller
board removal” on
page 309.
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 different 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, the modem
settings can be changed in the Fax/SE menu. See step 14. These settings should only be performed with guidance
from your second-level support. See
“ADF feed errors service check” on page 148.
7527
Diagnostic information
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