HP — 2. Paper Drive Test

13. The Printer will test the PWM at 61 ips and display the results on the Front Panel. If some of the results are incorrect, the Front Panel will show “High Friction”. Depending on the actual results received, the following should be done: • If PWM avg got is more than 32557 and PWM min diff got is less than 3100 then there is high friction along the Scan-Axis. In this case you should: • Clean the Slider Rods and Apply Oil along the complete axis of the Slider Rods. After applying the Oil, perform the test again. • Check that the Carriage Belt is installed correctly . • If PWM min diff got is less than 3100 but PWM avg got is less than 32557 then there is a problem in the Scan-Axis.

In this case you should: • Check that the Encoder Strip is clean. If necessary, clean Encoder Strip using a damp cloth. • Check that the Ink Supply Tubes and Trailing Cable is installed correctly . If there is a failure processing the PWM results, the Front Panel will display System Error Code 86:11 . In this case try repeating the test again. 14. Once the test is completed, OK will be displayed on the Front Panel and then you will be prompted to press any key to shut down the Printer. 2. Paper Drive Test The purpose of this test is to diagnose a failure in the operation of components related to the Paper Axis. You must perform the Paper Drive Test after: • System Error Code 81:YX.

Tests and Utilities • System Error Code 41:YX. • System Error Code 73:YX. NOTE: IF POSSIBLE ALWAYS PERFORM THIS TEST BEFORE REPLACING ANY COMPONENT OF THE MEDIA-AXIS. Perform the Paper Drive test as follows: 1. In the Service Tests submenu, scroll to “2. Paper Drive test” and press Enter . 2. The Printer will start to initialize the Scan-Axis system and the Front Panel will display the following information: Entering the Service Tests Menu 101