3
Event log
Open the DIAGNOSTICS menu and print an
event log to see the history of errors with this
product.
Does the event log print?
If the event log does not print, see Print an event log
on page 395.
If paper jams inside the product, see
Clear paper jams
on page 404.
If error messages display on the control panel when you try to print
an event log, see
Control-panel messages table on page 369.
After successfully printing and evaluating the event log, see step 4.
Yes
No
4
Information pages
Open the INFORMATION menu and print the
configuration pages to verify that all the
accessories are installed.
Are all the accessories installed?
If accessories that are installed are not listed on the configuration
page, remove the accessory and reinstall it.
After evaluating the configuration pages, see step 5.
Yes
No
5
Image quality
Does the print quality meet the customer's
requirements?
Compare the images with the sample defects in the image defect
tables. See
Image defects table on page 432.
After the print quality is acceptable, see step 6.
Yes
No
6
Interface
Can the customer print successfully from the
host computer?
Verify that all I/O cables are connected correctly and that a valid
IP address is listed on the Jetdirect configuration page.
If error messages display on the control panel, see
Control-panel
messages table on page 369.
When the customer can print from the host computer, this is the end
of the troubleshooting process.
Yes. This is the end of
the troubleshooting
process.
No
Power subsystem
Power-on checks
The basic product functions should start up when the product is plugged into an electrical outlet and the
power switch is pushed to the on position. If the product does not start, use the information in this section
to isolate and solve the problem.
Power-on troubleshooting overview
Turn on the product power. If the control panel display remains blank, random patterns display, or
asterisks remain on the control panel display, perform power-on checks to find the cause of the problem.
During normal operation, the main cooling fan begins to spin briefly after the product power is turned
on. Place your hand over the holes in the left-side cover, near the formatter. If the fan is operating, you
will feel air passing out of the product. You can also lean close to the product and hear the fan operating.
You can also place your hand over the hole in the right-rear lower corner. If the fan is operating, you
should feel air being drawn into the product. When this fan is operational, the DC side of the power
supply is functioning correctly.
After the fan is operating, the main motor turns on (unless the right or front cover is open, a jam condition
is sensed, or the paper-path sensors are damaged). You might be able to visually and audibly determine
if the main motor is turned on.
If the fan and main motor are operating correctly, the next troubleshooting step is to isolate print engine,
formatter, and control panel problems. Perform an engine test (see
Engine-test button on page 323).
Table 7-2 Troubleshooting flowchart (continued)
ENWW Troubleshooting process 317
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