HP Designjet 4000 Service Manual - Page 102
Sensors Test, Relevant Sensor. If This Test Passes, Do Not Replace
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Service Tests and Utilities PHONE SUPPORT 5. Sensors Test The purpose of this test is to verify the operation of the following Sensors: Window Sensor. Printhead Cleaner (PHC) Access Door Sensor. Media Lever Sensor. Media Sensor. IF POSSIBLE ALWAYS PERFORM THIS TEST BEFORE REPLACING A RELEVANT SENSOR. IF THIS TEST PASSES, DO NOT REPLACE THE RELEVANT SENSOR. Perform the Sensors test as follows: 1 Before starting, first make sure that: The Window is closed. The Printhead Cleaner Access Door is closed. The Media Lever is in the lowered position. Media is loaded. 2 In the Service Tests submenu, scroll to "5. Sensors Test" and press Enter. Press Enter 3 The Printer will start to initialize and the Front Panel will display the following messages: Starting Gamut. Starting Tests GPIO. If there is a failure at this point, the Front Panel will display System Error Code 01.0:10. For more information on troubleshooting this error code, refer to Page 2-3. 4 Before starting to test the sensors, the following message will be displayed. Press any key to continue: 4-28 hp designjet 4000 series printer service manual