Question about HP LaserJet 2420dn Printer

1 Answer

LaserJet 2420dn Error

49.4c02 Service Error

What is this error and how can I fix it?

Thanks!
Carol

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1 Answer

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  • 300 Answers

The error means -

A critical firmware error has
occurred.

Recommended action

1. After performing the actions
listed in the preceding item, if
the message persists when
using different software
programs and attempting
specific print jobs, disconnect
all cables that connect the
printer to the network or a
computer.
2. Turn the printer off.
3. Remove all memory DIMMs
or third-party DIMMs from the
printer. (Do not remove the
firmware DIMM in slot J1.)
4. Remove all of the
EIO devices from the printer.
5. Turn the printer on.
6. If the error message
disappears, reinstall
each DIMM and EIO device
individually, making sure to
turn the printer off and then
on again as you install each
device. To replace a DIMM,
see.
7. Replace the DIMM or
EIO device that caused the
error message.
8. Remember to reconnect all of
the cables that connect the
printer to the network or
computer.
9. If this error message persists,
replace the firmware DIMM.
10. Replace the formatter

Posted on Jun 03, 2008

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