Note on archived topics.
07-27-2012 09:12 AM
After a couple of power failures in a few minutes I tried to turn on the printer and get the message "49 error, turn off and turn on".
I disconnected everything and reconnected the power cable: up to 5 arrows show in the screen on the printer and the message
show up again. I have tried powering down and restarting with the same results. A lot of the sights indicate this could be a firmware problem but I can't connect to the machine to update it. I would appreciate any suggestion you may have. Thank you for your help.
08-01-2012 12:24 PM - edited 08-01-2012 12:49 PM
This issue seems to have many causes...here is some information I found regarding it:
Hope this info helps...let me know!
09-16-2012 01:11 PM
I had a problem with my new M451dn last week that generated the dreaded 'Error 49 Turn off and turn on' error. I printed out the Service report and it showed the 49.3870 error being generated. No other info on it. Called HP support and they ended up sending me a new printer. Guess what? Same error, still showing up intermittently. Tried changing drivers, using the universal one as well. Same issue.
This printer was replacing another HP laser that was configured as DHCP. I had a resesrvation defined on the DHCP server. Well, instead of just updating the reservations MAC address I decided to just set up the printer as a static IP using the same IP info. That's when the problem started. Out of curiousity I changed the reservations MAC address to match the new printers one and switched the printer back to Automatic (DHCP). Voila, it works great.
I suspect there is some sort of IP conflict that occurs when you use a static IP that is already held by a DHCP reservation. I'm sure it is detectable by the printer side. HP needs to modify the firmware to sense this issue and post a 'DHCP Conflict' message to the display. Would have saved me several hours troubleshooting time.