HP Designjet 4000 Service Manual - Page 138

Service Tests and Utilities PHONE SUPPORT 6. Sleep Mode The purpose of this Service Utility is to enable/disable the sleep mode so that the Printer is never switched Off automatically if not used for a certain period of time (one hour by default). Perform the Sleep Mode utility as follows: 1 In the Service Utilities submenu, scroll to "Sleep Mode" and press Enter. Press Enter 2 When the following message appears on the front panel, use the Up and Down arrow keys to either disable or enable the sleep mode. Press the Enter or Cancel key to confirm the selection. Press Enter or Cancel to confirm Use UP and DOWN keys to enable or disable the sleep mode If the current sleep mode cannot be read, it could point to a possible Firmware error. 3 Once the selection is confirmed, the Front Panel will display the new sleep mode state: If the current sleep mode cannot be set, it could point to a possible Firmware error. 4 If the utility exits correctly, OK will be displayed on the Front Panel. 4-64 hp designjet 4000 series printer service manual