4-31
Diagnostic Tests and Utilities
HP Designjet 4000/4020 Printer Series Service Manual
If there is a failure in reading the GPIO channel,
the Front Panel will display
System Error Code 01.0:10
. For more information on troubleshooting this
error code, refer to Page 2-3. Check also
System Error Code 07:10
(refer
to Page 2-6).
13 Once the test is completed, OK will be displayed on the Front Panel.