4-60 WorkCentre C2424 Service ManualScanner Scanhead Does Not Move1. Verify the scanhead shipping lock is in the “unlocked” position. Reboot thesystem.2. Is there power to the scanner assembly? Lift the document feeder and verify thedocument feeder lamp is on. If so, the scanner power supply is operatingcorrectly.3. Verify the scanner power supply, see "Verifying Scanner Power SupplyOperation" on page 4-70.4. Replace the scanner assembly.Scanhead Motion is Not Smooth and Continuous1. Verify the scanhead shipping lock is in the “unlocked” position. Reboot thesystem.2. Run the service diagnostics test “Exercise Axis Motion” and observe the motionof the scanhead, paying special attention to anything that could be obstructing thescanhead motion.3. If there is no scanhead motion, replace the scanner assembly.Scanner Lamp Does Not Turn On1. Is there power to the scanner assembly? Lift the document feeder and verify thescanhead moves. If so, the scanner power supply is operating correctly.2. Is there power being to the scanner power supply? See, "Verifying Scanner PowerSupply Operation" on page 4-703. Replace the scanner assembly.Control Panel is MalfunctioningNoteMake sure to connect the scanner cable properly to the electronics module.1. Control panel appears to be frozen or the buttons are not working.a. If the system is currently powered on and frozen, open then close the frontdoor of the system and see if the control panel responds.b. If system appears functional after operating the door, advise client thatfailure may have been due to an ESD event. Thoroughly test system for anyother problems.c. Skip the rest of this section if the system now appears functional, otherwisecontinue troubleshooting.
