Troubleshooting By Using The Event Log And The Control Panel Messages; Event Log - HP Color LaserJet 9500 Service Manual

Troubleshooting by using the event log and the control panel
messages

Event log

Use the event log to diagnose and troubleshoot output device errors and intermittent failures.
You can either print or display the event log from the control panel. (Select
SHOW EVENT LOG
Note A sample printed event log appears on page 248.
The event log is a last in-first out (LIFO), ordered listing of the last 50 entries. The printed event
log contains four columns that show event number, page count, error code, and description.
The description gives detail to the error messages. The information is useful for troubleshooting.
The event log should contain details about the following issues:
Interpreting the event log
Each individual entry in the log is called an "error," while all errors that occur at the same page
count are called an "event." For details about each error that comprises an event and to better
understand the event, see page 203. Events usually conclude with a time-out or with no
response from the device (error 66.XY in the event log). Turn the output device off, and then turn
it on again.
Use the event log tables in this section to associate errors on the event log with control panel
messages. Follow the recommended action that is listed in the event log table (page 203) for
each error or event.
1
2
3
4
ENWW
.)
Critical errors
Jams
Sensors sensing out-of-range conditions
Deleted jobs
Unexpected paper size errors
Complex page errors
Buffer overflow errors
NVRAM changes
Diagnostics tests
Check the event log for specific error trends in the last 10,000 printed pages.
Ask the customer about any observed error trends. (For example, do jams tend to occur in a
specific area of the output device?)
Record any specific error trends.
See the control panel and event log messages section in this chapter for the appropriate
output device.
PRINT EVENT LOG
Chapter 7 Troubleshooting 199
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