HP 4000

2-8
System Error Codes
HP Designjet 4000/4020 Printer Series Service Manual
System Error: 21:12
Problem
Description:
Fail moving Service Station.
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.
 If the System Error continues, replace the Service Station ⇒ Page 8-23.
System Error:
21:13
Problem
Description:
Problem with the Service Station.
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.
 Make sure that the Service Station path is clear. Remove any visible
obstacles (e.g. screws, plastic parts, etc...) restricting the movement of the
Service Station.
 If the System Error continues, replace the Service Station ⇒ Page 8-23.
System Error:
23:10
Problem
Description:
Problem with the APS.
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 APS cable is not damaged and is correctly connected to
the PrintMech PCA.
 Replace the APS Assembly ⇒ Page 8-62.
 R eplace the PrintMech PCA ⇒ Page 8-119.
 If the System Error continues, r eplace the Gamut PCI PCA ⇒ Page 8-98.
Only replace one component at a time and check if the error
has gone before replacing another component. Using this
procedure you will be able to determine exactly which
component failed.