HP 2000CP 2500CP - Manual (Page 59)

2-24 System Error Codes HP DesignJet CP Series Printers
System Error: 020004
Problem Description: Error in finding the Service Station home
position.
Corrective Action: Try the following:
D Make sure that the Service Station flag is
installed correctly
' page 8-26.
D Make sure that the Service Station nut is
installed correctly. The nut is located on the
front side of the Service Station, just below the
Printhead Cleaner holder.
D Make sure that the Service Station
Interconnect Cable (the black cable that
connects the Service Station to the Electronics
Module) is correctly connected to the
Electronics Module.
D Make sure that the cables for the Service
Station components are correctly connected to
the Service Station Interconnect PCA.
D Make sure that the Service Station stepper
motors are NOT shorted.
D Replace the Service Station interconnect cable
' Page 8-26.
D Replace the Service Station Assembly '
page 8-26.
D Replace the Electronics Module ' page 8-6.
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.