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Diagnostic Tests and Utilities
HP Designjet 4000/4020 Printer Series Service Manual
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„ Starting Pump.
5 The Printer will start the test of the pump and the Front Panel will display the
following messages:
îš„ Pressuring - Current Pressure ....
îš„ Holding pressure - Current Pressure ....
îš„ Depressurizing
If there is a failure at this point the front panel will display the following error
message: "Test Failed. Replace one cartridge with a new one. Press ENTER
to continue or CANCEL to abort". Remove an ink cartridge and replace it
with a new one and press the Enter key to repeat the test. If the Air Pump
System does not pass the test, continue replacing ink cartridges one at a
time until it passes.
6 When the Air Pump System passes the test the following message is
displayed on the front panel, press any key to continue.
7 Once the test is completed, OK will be displayed on the Front Panel.
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