HP Designjet 4000 Service Manual - Page 127
Press Enter to, Use UP
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Service Tests and Utilities 4 Use the Arrow keys to scroll to the "Service Utilities" menu and press the Enter key. Press Enter to confirm selection Use UP and DOWN keys to select 5 Use the Arrow keys to scroll through the "Service Utilities" selections and press the Enter key to begin a specific operation when the required Service Utility is highlighted. Press Enter to confirm selection Use UP and DOWN keys to select If the printer is not used for 135 seconds, the printer exits out of the Service Utilities Menu and you must repeat the above steps to enter Service Utilities again. In some cases a quick press of a button may not be recognized by the Printer. When pressing a button, be sure to press it deliberately and all the way to the bottom of its travel. hp designjet 4000 series printer service manual 4-53