I th tst s, to rsov th probm, try on o th oowng:
1Clear any binding due to a media jam.
2Turn the Printer off. Manually move the carriage along the carriage axis. Check for any areas where the carriage may be binding.
3Ensure that the belt and belt pulley are in correct working order. Remove dirt from the pulley that could cause the belt to slip.
4Remove dirt from the slider rod and chassis beam. Apply oil (Anderol 4068, HP part number: 6040.0858) to the carriage bushings.
5At high temperatures, and if the fan is not working correctly, the internal resistance of the motor driver may increase, causing a decrease in the voltage between the motor contacts, and a shutdown of the motor.
6Ensure that the encoder strip is not inverted, damaged or absent.
7Reconnect or replace the trailing cable ' page 8.8.
8Replace the carriage assembly ' page 8.37.
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 |