HP Designjet 4000 Service Manual - Page 77
Service Tests Diagnostics, Printhead Cleaner PHC Access Door Sensor.
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Service Tests and Utilities Service Tests (Diagnostics) The following is a list of all internal Service Tests available in the Printer. Instructions for entering the Service Tests menu are given on Page 4-5. 1 Scan Axis Test ⇒ Page 4-7 The purpose of this test is to verify the operation of components related to the Scan Axis. 2 Media Drive Test ⇒ Page 4-12 The purpose of this test is to verify the operation of components related to the Media Axis. 3 Electronics System ⇒ Page 4-17 The purpose of this test is to verify the operation of the: Main PCA (Formatter). Printer Configuration. Gamut PCI PCA. Power Supply Unit. PrintMech. Interconnect PCA. Carriage Communication. ISS Communication. 4 Carriage Assembly Test ⇒ Page 4-27 The purpose of this test is to verify the operation of the Carriage Assembly. 5 Sensors Test ⇒ Page 4-28 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. 6 Ink Delivery System Test ⇒ Page 4-32 The purpose of this test is to verify the operation of the Ink Supply Tubes. 7 SVS/Aerosol Fan Test ⇒ Page 4-33 The purpose of this test is to verify the operation of the Service Station and the Aerosol Fan. 8 Air Pump System Test ⇒ Page 4-34 The purpose of this test is to verify the operation of the Air Pressurization System (APS). 9 Vacuum Fan Test ⇒ Page 4-35 The purpose of this test is to verify the operation of the Vacuum Fans. hp designjet 4000 series printer service manual 4-3