User Guide

EN Basic troubleshooting 175
2
Is the product ready?
The control panel should
function without error
messages.
Control panel displays an
error.
Consult the list of common messages later
in this chapter to correct the error.
Control panel is not
functional.
Verify that the control panel cable is seated
into both the control panel and the scanner
formatter. Also check the connections
between the scanner formatter and the
formatter. If all cables are undamaged and
seated correctly but the problem persists,
replace the control panel.
Control panel display is
blank, but the LEDs are
lit.
1. On units that allow for firmware recovery,
recover the firmware using the recovery
DIMM.
2. If the problem persists, replace the
control panel.
3. If the problem persists, replace the
scanner formatter PCA.
4. If the problem persists, replace the
formatter.
Control panel display and
LEDs function, but keys
do not work.
Replace the control panel.
3
Do engine tests and
self-tests print?
Print an engine test,
which is explained on
page 200. The engine
test should print without
paper-feed problems or
print-quality problems.
Also print a configuration
report (See Internal
reports on page 209.).
Note The formatter must be connected to
perform an engine test.
Engine test is successful,
but the configuration
report does not print.
Replace the formatter.
Engine test is not
successful.
Replace the ECU.
Control panel displays an
error message.
Consult the list of common messages in
chapter 2 or the list of error messages in
this chapter to correct the error.
Media does not move
smoothly through the
printer paper path.
Isolate printer paper-path problems by
performing a paper-path check, which is
discussed later in this chapter.
Poor print quality. See Solving image-quality problems on
page 188.
Table 15. Basic troubleshooting (continued)
# Verification steps Possible problems Solutions