Since this site is a Q&A for system administrators and desktop support professionals I'd decided to post my question here. Not sure if this is the best stackexchange website for this.
We have an HP Color Laserjet 4700n of course out of warranty. And we have an 49.4CF2 Service error. According to several sources online, this is firmware related.
When I switch of the printer and switch it back on, it gives this error again. I have tried to give it a cold reset. But that didn't work either. I have downloaded both firmware downloads from hp.com first one has an application which transfers the firmware to the printer, but after about 5% the printer switches again to 49.4CF2 Service error. I also tried the second firmware. So I used filezilla to transfer the .rfu file. The start of the transfer looked good. But again, after about 5% there was a lost connection.
I do not know what else I can try to resolve this error.
p.s. ping-ing the printer works. but stops when the error occurs. same for webinterface of the network printer.
EDIT: as Jan Marek and Ezio Zanghellini said: the firmware is still not updated. Seems impossible!
Seems that it is solved!
Since I am no expert in the kitchen with ovens etc. I had decided to skip Pauska's solution (sorry, nothing personal)
I disconnected the network cable. The printer boots fine then. But I can only print by network. So I reconnected it and changed the static IP address from .190 to .192 (on the end) and reconfigured a lot of pc's to use the new (lan) ip.
And the service error is gone. I still have no idea what might have caused this. Maybe a PC in the LAN keeps sending wrong stuff to the 192.168.1.190 IP address?
I've heard about people baking the formatter (yes, in a oven) to fix bad soldering on the HP P2015.. It's a crazy idea, but perhaps it would work as a last resort.
See this or this video (warning, loud music).
Remove the DIMM RAM... Remove EIO devices... Check that the formatter is secured... See if it starts working properly... If so, put the stuff back in until the failure reappear.
If all fails... It could be a faulty formatter, but this is very unusual.
You can try detect, where is problem with this device according answers on this forum (remove a NIC and try to start printer and wait, if error occur, if not, you can add NIC w/o plug network connection and try to start printer and wait, if this error occur, you can try empty your queue and after that do reset of your printer, or empty your queue and then try to upgrade firmware)...
I'm responding to the additional folks, and the original post, about not upgrading the firmware. We had a spare HP Color LaserJet 4700 in a box we just took out. Tried to upgrade using the latest fw (2012) and received the same 49 service error. On another forum, I found the answer: HP has an ftp accessible repository for their old printer firmware: ftp://www.hp.com/pub/networking/software/pfirmware/
As per someone else's hard work in determining which fw to use: we had 20051204 46.029.3 got 20091125 46.120.4 from the repository Used Web JetAdmin to import the fw, then send it to the printer. From there, already had the 2012 fw, so upgraded the printer again, and now it's working fine!
BTW, the other forum where I found this at is: http://h30499.www3.hp.com/t5/Printers-LaserJet/CLJ-4700-49-4CF2-error/td-p/5293729
I managed to find a firmware that overcomes the barriers of what HP has introduced for the signature. You can upload lj4700fw_46_130_5 and then the latest firmware.
or
My first step was the installation of
lj4700fw_46_130_5, followed by error BAD LUCID XX, which I do not know what it meant. After switching off and on again to display the banner RESEND UPGRADE.
I've already uploaded version lj4700fw_180.xx (I think it was unnecessary).
latest firmware. Each firmware lasted about 15 minutes, you have to be patient :)
All through the FTP protocol.