Table 2-7 Troubleshooting flowchart (continued)
4
Information
pages
Open the Reports 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
Print quality
Does the print quality meet the customer's
requirements?
Compare the images with the sample defects in the image defect
tables. See the images defects table in the product service manual.
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 HP Jetdirect configuration page.
If error messages display on the control panel when you try to print
an event log, see the control-panel message section of the service
manual.
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 connected 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.
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.
Power-on troubleshooting overview
During normal operation, a cooling fan begins to spin briefly after the product power is turned on.
Place your hand over the vents in the left-side cover, above the formatter. If the fan is operating, you
will feel air passing out of the product. You can lean close to the product and hear the fan operating.
You can also place your hand over the vents on the right side of the rear cover. If the fan is operating,
you should feel air being drawn into the product.
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. If the formatter is damaged, it
might interfere with the engine test. If the engine-test page does not print, try removing the formatter,
and then performing the engine test again. If the engine test is then successful, the problem is almost
certainly with the formatter, the control panel, or the cable that connects them.
126 Chapter 2 Solve problems ENWW
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