HP DesignJet Z2100

System Error Codes
2-14 Designjet Z Series — Service Manual
 Perform the Paper Drive diagnostic test to troubleshoot the problem further

Page 3-18.
 If the problem persist check that the Media Advance Drive cable is not
damaged and is correctly connected to the Main PCA.
 Replace the Media Advance Drive  Page 6 -181 .
 If the System Error continues, replace the Main PCA  Page 6-163.
System Error: 42:03
Problem
Description:
Scan-Axis Motor failure (likely due to obstacles in the scan axis or electrical
fault).
Corrective Action: Try the following:
 Same as 42:YZ but after testing the issue is repeatable.
System Error: 42:YZ
Problem
Description:
Scan-Axis Motor failure (likely due to friction or obstacles in the media path).
Corrective Action: Try the following:
 Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
 Open the Window and check for any visible obstacles restricting the
movement of the Media Advance Roller. If there is a wrinkled mass of
media inside the paper path, lift the Pinch wheels (using Media Lever)
and clear the obstruction.
 Perform the Scan Axis diagnostic test to troubleshoot the problem further

Page 3-6.
 Check that there is no obstacle preventing the Service Station from
working.
 Perform the Service Station diagnostic test to troubleshoot the problem
further 
Page 3-45.
 Check that the Scan-Axis Motor cable is not damaged and is correctly
connected to the PrintMech PCA.
 Replace the Scan-Axis Motor  Page 6-116.
 If the System Error continues, replace the PrintMech PCA  Page 6-71.
System Error: 44:YZ
Problem
Description:
Fan Electrical fault, or not connected..
Corrective Action: Try the following:
 Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
 Check that the Aerosol Fan cable is not damaged and is correctly
connected to the PrintMech PCA
 Replace the Aerosol Fan Assembly  Page 6-65.
 If the System Error continues, replace the PrintMech PCA  Page 6-71.