Actions Yes No
Step 10
Replace the ADF cable.
Does this fix the problem?
Problem resolved. Go to step 11.
Step 11
Replace the ADF. See
“ADF assembly removal” on page 326.
Does this fix the situation?
Problem solved. Replace the controller
board. See
“Controller
board removal” on
page 309.
ADF duplex 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 148.
Actions Yes No
Step 1
Perform the ADF motor tests to verify that the motors are working
properly. See
“Motor tests” on page 211.
Are the motors operating properly?
Go to step 2. Go to step 4.
Step 2
Perform the scanner sensor tests. See
“Scanner tests” on page 211.
Are the sensors working properly?
Go to step 3. Go to step 4.
Step 3
Check the ADF sensor actuators to see if they are dirty or jammed.
Are the actuators ok?
Go to step 4. Clean the actuators. If
any actuators on the
ADF are broken, then
replace the ADF unit.
See
“ADF assembly
removal” on page
326.
Step 4
Check all of the connections on the ADF relay card. Are the properly
connected?
Go to step 5. Properly connect all of
the connections.
Step 5
Check the ADF cable to ensure that is it properly connected to the ADF
relay card, and the main controller board at JADF1.
Is the ADF cable properly connected?
Go to step 6. Properly connect the
ADF cable to its
connections.
Step 6
Check the ADF cable for continuity. Make sire pin 22 has continuity.
Does pin 22 have continuity?
Go to step 7. Replace the ADF cable.
7527
Diagnostic information
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