Troubleshooting with control panel messages Control panel display The control panel should show READY , PAUSED , or POWERSAVE ON . For information about error messages that appear, see the event log. If the control panel is blank, see “Power on” on page 192. Event log page Use the event log to diagnose and troubleshoot MFP errors and intermittent failures. You can either print or show the event log from the control panel. (Select PRINT EVENT LOG or SHOW EVENT LOG .) The event log is a last in-first out (LIFO) ordered listing of the last 50 entries. The printed event log is printed in four columns that show event number, page count, error code, and description or personality.
The description or personality gives detail to the error messages. The information is more useful for troubleshooting. Items that should be logged in the event log include the following: critical errors jams sensors sensing out of range deleted jobs unexpected paper size complex pages buffer overflow NVRAM changes any diagnostics tests Print the event log The MFP internal event log stores the 50 most recent events, and can be printed at any time. To print the event log: 1 Using the touch screen, touch MENU to open the menus. 2 Touch DIAGNOSTICS . 3 Touch PRINT EVENT LOG . 4 The event log prints. The control panel shows the message PRINTING EVENT LOG .
194 Chapter 7 Troubleshooting C8523-90921