Serv￿/Enc￿der Test

The servo/encoder test performs the following:

￿Media1axis encoder test: Verifies the operation of the servo loop (media1axis feedback).

￿Carriage1axis encoder test: Verifies the operation of the servo loop (carriage1axis feedback).

￿Records the maximum friction detected in the EEROM. You can view this information on the service configuration plot.

Perform the Servo/Encoder test as follows:

1In service mode 2, press Serv￿/Enc￿der Test (Media Type Key).

2The test will start and there will be slight movements in the X and Y1axis. After every 5 movements, the direction of the movement will change in both axis. The maximum PWM of both axis will be saved in the EEROM.

3To view the results of the test, you must print the Service Configuration Plot (Print Quality and Media Type keys).

4If the test fails, an error code will appear on the front1panel. Refer to Chapter 2 in order to correctly troubleshoot the failure.

Service Tests

HP DesignJet 430, 450C and 455CA Printers

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