4-12
Diagnostic Tests and Utilities
HP Designjet 4000/4020 Printer Series Service Manual
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2. Media Drive Test
The purpose of this test is to diagnose a failure in the operation of
components related to the Media Axis.
You must perform the Media Drive Test after:
System Error Code 81:XX.
System Error Code 41:XX.
System Error Code 73:XX.
IF POSSIBLE ALWAYS PERFORM THIS TEST BEFORE REPLACING
ANY COMPONENT OF THE MEDIA-AXIS.
Perform the Paper Axis test as follows:
1 In the Diagnostics Tests submenu, scroll to "2. Media Drive test" and press
Enter.
2 The Printer will start to initialize the Scan-Axis system and the Front Panel will
display the following information:
Starting Gamut.
Starting Tests PWM.
Starting Tests GPIO.
Set 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.
Checking voltage.
If there is a failure at this point, the Front Panel will display System Error
Code 03:10. For more information on troubleshooting this error code, refer
to Page 2-5. Check also System Error Code 01.0:10 (refer to Page 2-3).
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.
Checking voltage.
If there is a failure at this point, the Front Panel will display System Error
Code 03:10. For more information on troubleshooting this error code, refer
to Page 2-5. Check also System Error Code 01.0:10 (refer to Page 2-3).
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