Phone Support

The purpose of this test is to verify the movement of the scan-axis components at several speeds. This test checks for the following problems:

Friction problems with worn out slider rod or Carriage Bushings.
Blockage due to problems with the Service Station.
Problems with encoder sensing

NOTE: This Service Test can be performed by the End User with the guidance of a HP Support person via the phone.

WARNING: IF POSSIBLE ALWAYS PERFORM THIS TEST BEFORE REPLACING THE CARRIAGE ASSEMBLY. IF THIS TEST PASSES, DO NOT REPLACE THE CARRIAGE ASSEMBLY.

Perform the Carriage Movement test as follows:

In the Service Tests submenu, scroll to "Carriage movement" and press Enter.

The test will start and the following message will appear on the Front Panel:

Once the Printer has completed the test it will analyze the data received while performing the test. Once the data has been analyzed, the following message will appear on the Front Panel:

If you press Enter, the Front Panel will display a list of the different results you can view. You can make your selection using the arrow keys and press Enter to view the selection.

If you selected PWM, the Front Panel will display the results of the PWM test:

If you selected Speed offset, the Front Panel will display the results of the Speed offset:

If you selected Stabilization distance, the Front Panel will display the results of the Stabilization distance:

To check if the values displayed after the test are within the limits, refer to the following table:

If the values obtained in the test are more than the acceptable values listed in the above table, then the test has failed. In this case, to resolve the problem, try the following:

Check that there are no obstacles restricting the movement of the Carriage Assembly.
Clean the Slider Rod and apply Oil along the complete axis of the Slider Rod.
Check that the Encoder Strip is clean. If necessary, clean the Encoder Strip using a damp cloth .
Check that when the Carriage Assembly is moving, there is no noise coming from the transmission components (Motor, Belt, Idler Pulley). If there is noise from these components, replace them.
Replace the Encoder Strip » Encoder Strip.
Replace the Belt and the Idler Pulley » Fork Idler, Tensioner Idler Pulley and » Carriage Assembly.
Replace the Scan-Axis Motor Assembly » Scan-Axis Motor Assembly.
Replace the Carriage Assembly » Carriage Assembly.