HP 510 Inkjet Large Format CH336A#B1K manual

Service Tests and Utilities

6It is possible that while performing this test, a Paper-Axis shutdown occurs, in which case the following message will be displayed:

Paper Advance test

System error 81:11

Paper-axis shutdown

In this case, to resolve the problem, try the following:

1Open the Window and check for any visible obstacles that could be restricting the movement of the Drive Roller.

2Try cleaning the Drive Roller using the Turn Drive Roller service utility ⇒ Page 4-22.Also try cleaning the Drive Roller Gears.

3Replace the Drive Roller ⇒ Page 8-86.

4Replace the Gear Assemblies ⇒ Page 8-92.

WARNING	Only replace one component at a time and try the Service Test
	again before replacing another component. Using this procedure
	you will be able to determine exactly which component failed.

5If the Drive Roller Encoder-Sensor test passes, the Printer will try turning the Drive Roller and the following message will appear on the Front Panel:

Paper Advance test

Moving Drive Roller.

Please wait

6Once the test is completed, the results will be displayed on the front panel:

Test results
	Average value of the PWM
Average PWM: XX	Standard deviation value of
Std dev PWM: X	the PWM

HP DesignJets 500, 510 and 800 Series Printers Service Manual 4-13