HP 2000CP 2500CP - Manual (Page 38)

System Error Codes 2-3 HP DesignJet CP Series Printers
Important Information on Troubleshooting Error Codes
Before spending time troubleshooting the problem by doing the various tests
or replacing parts (which may not need replacing), check which firmware
revision the printer is using or check if a service note deals with this
particular problem. Some problems which occurred in earlier firmware
releases may have been solved in later revisions. So if there is a new
firmware revision then update the Flash SIMM before replacing any parts.
Refer to page 1-3 for information on how to upgrade the firmware revision.
Refer to Chapter 7 for the part number of the Flash SIMM.
System Error: 0000D8 XXXXXXXX
Problem Description: Library Error.
Corrective Action: Refer to System Error Code 07xxxx.
System Error: 010020
Problem Description: The Checksum read on the Flash SIMM is
incorrect.
Corrective Action: Try the following:
D Reseat the Flash SIMM.
D Replace the Flash SIMM.
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.