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294 Troubleshooting Q2431-90912
79.XXXX
PRINTER ERROR
To continue turn off then on
A critical hardware error has
occurred.
1. Turn the printer off and then
on.
2. If the problem persists, reseat
the firmware DIMM.
3. Reseat the formatter.
4. Go to htpp://www.hp.com/
support/LJ4200 or htpp://
www.hp.com/support/
LJ4300. Select Download
Drivers and Software. Check
for the latest firmware image
version at the bottom of the
page. If this firmware image
is newer than the one
installed on your printer and
your printer can receive a
firmware update, download
the newer firmware upgrade.
Not all HP LaseJet 4200/
4300 printers can receive
firmware upgrades.
5. Replace the formatter. See
“Formatter assembly” on
page 161.
6. Replace the firmware DIMM.
See “Firmware DIMM” on
page 160.
8X.YYYY
EIO ERROR
The EIO accessory card in slot X
has encountered a critical error.
1. Turn the printer off and then
on.
2. If the problem persists, reseat
the EIO card.
3. Replace the EIO card.
4. Replace the formatter
assembly. See “Formatter
assembly” on page 161.
Table 42. Numerical printer messages (continued)
Message Description Action