4-14
Service Tests and Utilities
HP Designjet 4500 Printer Series Service Manual
4 The Printer checks the enable/disabled status of Roll Module Feed Motor1
and Roll Module Feed Motor2. If there is a failure at this point, the Front
Panel will display System Error Code 74:00.
For more information on
troubleshooting this error code, refer to Page 2-24.
5 A message will appear on the Front Panel asking whether you would like to
run the Subsystem Tests. 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.
6 If you selected ’Yes’ a message will appear on the Front Panel asking
whether you would like to run the Media Drive Test. 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:
7 If you select Yes the Printer will check the revision of the PCA and the
following message will be displayed on the Front Panel:
Checking PCA rev.
The value for the PCA revision must be more than 0.625V, if not the Front
Panel will display System Error Code 01.1:10. For more information on
troubleshooting this error code, refer to Page 2-4.
8 The Printer will program the duty cycle for the PWM test for the Media Drive
Movement and leave it disabled and the following message will be
displayed on the Front Panel:
Prog slow PWM paper.
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.
Press Enter to
confirm selection
Use UP and
DOWN keys
to select
Press Enter to
confirm selection
Use UP and
DOWN keys
to select
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