Actions Yes No
Step 6
Check the ADF cable for continuity. Make sure pin 22 has
continuity.
Does pin 22 have continuity?
Go to step 7. Replace the ADF
cable. See
“ADF
cable removal” on
page 368.
Step 7
Replace the ADF. See
“ADF unit removal” on page 362.
Does this fix the situation?
Problem solved. Replace the
controller board. See
“Controller board
removal” on
page 282.
Modem/fax card service check
Note: This service check should be used if the paper feeds and jams in the ADF. If the paper is not
feeding into the ADF see
“ADF feed errors service check” on page 168.
Actions Yes No
Step 1
Is the phone line properly connected to the modem card and the
wall jack?
Go to step 2. Go to step 3.
Step 2
Properly connect the phone line to the modem card and wall jack.
Did this fix the problem?
Problem resolved. Go to step 3.
Step 3
Test the ability of the phone line to send and receive calls.
Did the phone line work properly?
Go to step 5. Go to step 4.
Step 4
Use the MFP on a properly functioning phone jack.
Did this fix the problem?
Problem resolved. Go to step 5.
Step 5
Is the modem card ribbon cable properly connected to the
controller board at JMOD2 and the modem card?
Go to step 7. Go to step 6.
Step 6
Properly connect the modem card cable to the modem card and
controller board.
Did this
fix
the problem?
Problem resolved. Go to step 7.
Step 7
Check the modem card ribbon cable for continuity.
Is there continuity?
Go to step 8. Replace the modem
card cable.
7016
Diagnostic information
170
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