HP C7769B Service Manual - Page 95

NOTE NOTE Service Tests and Utilities Change Ink Tubes The purpose of this Service Utility is to move the Carriage Assembly to a position where it makes the removal of the Ink Supply Tubes much easier. In order to actually replace the Ink Supply Tubes, refer to Page 8-60. Perform the Change Ink Tubes utility as follows: 1 In the Service Utilities submenu, scroll to "Change Ink Tubes" and press Enter. Service utilities Change ink tubes Unlock Carriage Turn Drive Roller Prime tubes EEROM Setup Menu Back Enter 2 Once the utility starts, the printer will display the following message on the front panel. If you want to abort the Change Ink Tubes utility, press Cancel and you will return to the Set-up menu. Change ink tubes Press ENTER to continue or CANCEL to quit 3 If you press Enter, the Carriage will move to a position where you change the Ink Supply Tubes and the following message will be displayed on the Front Panel. You should switch the Printer OFF before starting to change the Ink Supply Tubes. 1. Switch off the machine 2. Refer to the Service Manual to replace tubes The next time the Printer is switched ON, it will automatically start the Priming process. HP DesignJets 500 and 800 Series Printers Service Manual 4-25