LaserJet 2420d RFU Load Error (1275 Views)
Occasional Visitor
Posts: 1
Registered: ‎07-21-2011
Message 1 of 2 (1,275 Views)

LaserJet 2420d RFU Load Error

We have a LaserJet 2420d that died during a power outage.  It came up with the "RFU LOAD ERROR" message, and I was able to send it the firmware by setting the thing up as "Hewlett-Packard HP USB Upgrade" and using the HP firmware update tool.

 But then it locked up with a status message of "RFU LOADED  Cycling Power".  After waiting a while, I powered it off and back on.  Now it just sits with a blank LED and all 3 status lights lit.

Is there anyway to revive this printer?  We do have another functional 2420d.
I've heard of being able to swap a part into the functional 2420d and copy the good firmware to it.

(From here: )

Esteemed Contributor
Posts: 1,205
Registered: ‎07-28-2010
Message 2 of 2 (1,270 Views)

Re: LaserJet 2420d RFU Load Error

The CLJ4700 is completly different than the lj2420 therefore that "solution" will not work.

You could try re-pushing the firmware to the printer but I think that the formatter board is toasted and needs to be replaced. 

The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation.