If the test fails, to resolve the problem, try one of the following:
1Switch OFF the Printer and manually moving the carriage along the slider rod, check for obstacle or friction in the X)axis.
2Check for a faulty or badly connected X)axis Encoder Cable.
3Replace media motor ' page 8)23.
4Replace electronics module ' page 8)13.
Only replace one component at a time and perform the test again before replacing another component Using this procedure you will be able to determine exactly which component failed
Service Tests | HP DesignJet 430, 450C and 455CA Printers |