HP LaserJet 9000 HP LaserJet 9000 series printer User Guide - Page 194

Appendix B Control panel menus 194 Diagnostics submenu Administrators can use this submenu to isolate parts, and to troubleshoot jam and print quality issues. Item PRINT EVENT LOG Values SHOW EVENT LOG SET PAPER PATH TEST SERVICE TEST Explanation Generates a localized LIFO (last in, first out) list of the 50 most recent entries in the error log. The printed event log shows error number, page count, error code, and description or personality. Allows the user to scroll through the contents of the event log from the control panel, and shows the 50 most recent events. Use and to scroll through the event log contents. Generates a test page that is useful for testing the paper handling features of the printer. Engine tests access portions of the printer internal diagnostics that occur when the printer is turned on. These diagnostics are available as tools to help isolate problems that are not reported by the firmware. Resets submenu Note Use this menu with caution. You can lose buffered page data or printer configuration settings when you select these items. Reset the printer only under the following circumstances: z You want to restore the printer default settings. z Communication between the printer and computer has been interrupted. z You are having problems with a port. Configure device menu