P2015dn went offline error code 20.0000 (8605 Views)
Occasional Visitor
Posts: 1
Registered: ‎06-13-2008
Message 1 of 4 (8,605 Views)

P2015dn went offline error code 20.0000

This printer worked for a while then went off the network. The ethernet light was blinking, but could no longer be reached via the IWS. Unplugging/replugging cured it. The event log shows the last 2 error codes were 20.0000, but nothing turned up for that on HP or Google.

I need this printer to be more reliable. Any ideas?


Honored Contributor
Posts: 2,941
Registered: ‎02-20-2007
Message 2 of 4 (8,605 Views)

Re: P2015dn went offline error code 20.0000


There has been discussions in the other HP LaserJet forum :-


about IP loss/not waking from sleep mode on the LJ2015 eg :-


and a firmware upgrade which claims to fix this :-


But people have discovered that the firmware upgrade only works on certain LJ2015s with a particular formatter board :-


It might be worth seeing if these links help.


Occasional Visitor
Posts: 1
Registered: ‎06-13-2011
Message 3 of 4 (8,213 Views)

Re: P2015dn went offline error code 20.0000


I am getting 20.0000 errors on my P2015DN. When I click on any of the links in the previous reply to this post i just get sent to the Business Support homepage. I can't find the 20 error cod eanywhere else. Can somebody please explain what the code means and, if neccessary, which system boards does the firmware upgrade work on.

Many Thanks

Outstanding Contributor
Posts: 15,887
Registered: ‎02-27-2006
Message 4 of 4 (8,208 Views)

Re: P2015dn went offline error code 20.0000

Forget about firmware.  It is not the probllem.  The issue is the formatter which in 98% of the cases can be repaired at your home.  See below:


Remove the formatter board and remove tape by memory slot if there. Prop up on four corners and place in a baking pan chips facing up and make sure the bottom of the board does not touch the pan. Preheat regular oven to 350F (177C), place in oven for 8 minutes. Remove and let cool for 30 minutes and put back in printer. Please do not post to this link that I did it for x minutes and x temperature since that is what has happened to the last thread and confuses people trying to fix theirs. The instructions above work 100% of the time when the formatter has cold solder joints on the main processor. Link to service manual below if you need to see how to remove formatter:


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.