Service Tests and Utilities

3Once the test is completed, the following message will appear on the front panel:

PAPER AXIS

Max PWM: XXX

Avg PWM: XXX

Max PWM (C): XXX

Avg PWM (C): XXX

If the values of the Max. PWM is less than 95 and the Avg. PWM is less than 85, then the test has passed.

If the values of the Max. PWM is more than 95 and the Avg. PWM is more than 85, then the test has failed. To resolve the problem, try the following:

1Open the Window and check for any visible obstacles restricting the movement of the Drive Roller or the Overdrive Assembly.

2Replace the Paper-Axis Motor ⇒ Page 8-12.

If the values of the Max. PWM is less than 95 and the Avg. PWM is less than 85, but the values of the Max. PWM(C) is more than 100 and the Avg. PWM(C) is more than 90 then the test has failed. To resolve the problem, try the following:

1Replace the Overdrive Assembly ⇒ Page 8-64.

HP DesignJets 1050C and 1055CM Printers Service Manual

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