2-62 Service ManualADF Duplex service checkStep Questions / actions Yes No1 Perform sensor 1, and sensor 2sensor tests. Go to “Scanner Tests”on page 3-25.Are the sensors working properly?Go to step 2. Go to step 3.2 Check the ADF sensor actuators tosee if they are dirty or jamming.Are the actuators ok?Go to step 3. Clean the actuators. If anyactuators on the ADF arebroken, replace the ADF unit. Goto “Duplex ADF removal” onpage 4-633 Check all the connections on the ADFrelay card. Are they properlyconnected?Go to step 4 Properly connect all theconnections.4 Check the ADF cable to ensure it isproperly connected to CN 15 on theADF relay card, and main controllerboard at J17. Is the ADF cableproperly connected?Go to step 5. Properly connect the ADF cableto its connections.5 Check the ADF cable for continuity.Make sure pin 22 has continuity. Isthere continuity on pin 22?Go to step 6. Replace the ADF cable.Go to“ADF cable” on page 4-656 Replace the ADF. Go to “Duplex ADFremoval” on page 4-63. Does this fixthe situation?Problem solved Replace the controller board. Goto “Controller board removal”on page 4-16.
