Scanner Communication Error Service Check - Lexmark MB3442 Service Manual

Diagnostics and troubleshooting

Scanner communication error service check

1. Perform the following tests:
a. Remove the right cover. See
b. Reseat the following cables on the controller board:
▪ JADFM1
▪ JFBM1
▪ JSCANSNS1
▪ scanner ground cable
Does the problem remain?
◦ Yes:
Go to the next step.
◦ No:
The problem is solved.
2. Make sure that the scanner ground cable is properly connected to the controller board.
Does the problem remain?
◦ Yes:
Go to the next step.
◦ No:
The problem is solved.
3. Replace the ADF and scanner. See
Does the problem remain?
◦ Yes:
Go to the next step.
◦ No:
The problem is solved.
4. Replace the controller board. See
Does the problem remain?
◦ Yes:
Contact the next level of support.
◦ No:
The problem is solved.
.Right cover removal on page 298
.ADF and scanner removal on page 352
.Controller board removal on page 301
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