4-22
Diagnostic Tests and Utilities
HP Designjet 4000/4020 Printer Series Service Manual
îš„ Clear GPIO psu_lpm.
If there is a failure at this point, the Front Panel will display System Error
Code 01.0:10. For more information on troubleshooting this error code,
refer to Page 2-3.
îš„ Disable Vacuum Fans.
îš„ Checking Vacuum Fans.
îš„ Enable Vacuum Fans.
îš„ Checking Vacuum Fans.
îš„ Disable Vacuum Fans.
If there is a failure at this point, the Front Panel will display either
System
Error Code 01.0:10
or
System Error Code 01.1:10
. For more
information on troubleshooting either of these error codes, refer to Page 2-3.
îš„ Starting CDS.
If there is a failure at this point, the Front Panel will display System Error
Code 79:03. For more information on troubleshooting this error code, refer
to Page 2-21.
îš„ Getting unit config.
If the Part Number cannot be read, the Front Panel will display System
Error Code 74:00. For more information on troubleshooting this error
code, refer to Page 2-20.
If the current Part Number is not in the correct 6 character format, the Front
Panel will display a fail message. In this case, re-enter in to the Diagnostics
Tests submenu and use the diagnostic "13. Error 71:19 Recovery" to set the
correct Serial Number (refer to Page 4-49).
If the unit configuration is incorrect according to the part number, the Front
Panel will display a fail message. In this case, re-enter in to the Diagnostics
Tests submenu and use the diagnostic "12. Set Unit Configuration" to set the
correct configuration (refer to Page 4-48).
17 A message will appear on the Front Panel asking whether you would like to
check the Interconnect. Select Yes or No by using the Up and Down keys
and press Enter to confirm your selection. If you select No, the printer skips
this test and goes to the next one:
18 If you select Yes, the Printer will check the Interconnect PCA and the
following messages will be displayed on the Front Panel:
îš„ Starting CDS.
Press Enter to
confirm selection
Use UP and
DOWN keys
to select
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