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Diagnostic Tests and Utilities
HP Designjet 4000/4020 Printer Series Service Manual
8. Air Pump System Test (firmware 10.1.1.4)
The purpose of this test is to verify the operation of the Air Pressurization
System (APS).
Perform the Air Pump System test as follows:
1 In the Diagnostics Tests submenu, scroll to "8. Air Pump System Test" and
press Enter.
2 A message will appear on the Front Panel asking whether you would like to
check run the diagnostic 93.11. Select Yes or No by using the Up and
Down keys and press Enter to confirm your selection.
3 If you select Yes the printer will display the following message, ensure all the
ink cartridges are installed correctly and press any key to continue.
4 The Printer will start the configuration process and the Front Panel will
display the following messages:
îš„ Starting Nvm.
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„ Starting Supplies Conf.
îš„ Starting Gamut.
Press Enter to
confirm selection
Use UP and
DOWN keys
to select
P
HO
N
E
S
UP
PO
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