HP DesignJet Z2100

System Error Codes
2-16 Designjet Z Series — Service Manual
 Check that the Window Position Sensor cable is not damaged and is
correctly connected to the PrintMech PCA.
 Perform the Sensors Test to troubleshoot the problem further  Page 3-33.
 Replace the Window Position Sensor  Page 6-54.
System Error: 52:10
Problem
Description:
The printer has detected fibers in the Drop Detector.
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 Drop Detector cable is not damaged and is correctly
connected to the PrintMech PCA.
 Clean the drop detector.
 Check that the Service Station cable is not damaged and is correctly
connected to the PrintMech PCA.
 Replace the Drop Detector  Page 6-64.
 Reset the Calibration Flag of the Drop Detector  Page 4-12.
 If the System Error continues, replace the PrintMech PCA  Page 6-71.
System Error: 55:YZ
Problem
Description:
Problem with the Line Sensor (Tetris). The printer has detected a failure to
access Line Sensor EEPROM).
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.
 Perform the Carriage Test to troubleshoot the problem further  Page 3-
27
 Check the Line Sensor connections to the Carriage PCA.
 Replace the Line Sensor  Page 6-128.
 If the System Error continues, replace the Carriage PCA  Page 6-138.
System Error: 56:YZ
Problem
Description:
Drive roller analog encoder sensor fail or calibration failed.
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.
 Perform the Media Path Test to troubleshoot the problem further  Page
3-18.
 Replace the Encoder Disk and Encoder Sensor  Page 6-178.
 If the System Error continues, replace the Main PCA  Page 6-163.