4 Quick Reference Service Manual
HP DesignJet 430, 450C and 455CA Printers
System Error: Steady DM Ć Obstacle or friction in XĆaxis. Faulty or badly connected
XĆaxis Encoder Cable. Faulty media motor, or motor cable pinched. Faulty electronics module.
System Error: Steady DEFK Ć Not enough memory for current plot. Add extra memory.
If this error code appeared while performing the Accuracy Calibration: Check that the quality
of the Accuracy Calibration print is good. If the quality is bad, try to clean the black cartridge
or replace it. Make sure that you load the Accuracy Calibration print in the correct position
and orientation, and make sure that you select the correct media type. Make sure that the
line sensor on the carriage is clean. Faulty Trailing Cable. Faulty Carriage Assembly. Faulty
Electronics Module.
System Error: Steady DFK Ć Check the Bail Assembly. Check the Capping Position in
the Service Station.
System Error: Steady DEFM Ć Check the bailĆlift system to see if it is working
correctly. Use the bail cycle test to help troubleshoot.
System Error: Steady DLM Ć Is XĆaxis calibration done? Did you load media in correct
orientation? Are the marks visible on the plot? If not, check cartridges. Are cartridges
correctly aligned? If so, the problem may be in the electronics module, media motor or
driveĆroller gear; if alignment is incorrect, the problem may be in the carriage.
System Error: Steady FL Ć The Printer is using an old Firmware revision Ć Install the
latest firmware revision.
System Error: Steady DEFL Ć Report the problem to your HP Response Center. Note
conditions and actions before error occurred. Include setup sheet and service configuration plot
in report.
System Error: Steady DEL Ć Incorrect configuration in communications speed/protocol.
Incorrect communications cable. Error in host computer.
System Error: Steady DFL Ć Replace the Electronics Module.
System Error: Steady DKL Ć The line on the mark encoder is dirty or missing. Faulty or
badly connected trailing cable. Faulty or badly connected carriage sensor. Faulty or badly
connected XĆaxis Encoder Cable. The drive roller has shifted slightly from the expected position
(mechanics). Check that the carriage sensor lights just over the white mark on the drive roller
when starting. Faulty carriage PCA. Faulty XĆmotor. Faulty YĆmotor. Faulty electronics module.
System Error: Steady EFL Ć Problems in the Centronics Communications. Probably
due to the bad contacts of the connector.
System Error: Steady FKL Ć Carriage assembly is not present. Faulty or badly
connected trailing cable. Faulty carriage PCA. Faulty electronics module.
