How solve thie porblam
SOURCE: HP laserjet 3015 upgrade error - call HP Support ~
The firmware is corrupted, formatter (mainboard) on the printer is damaged, there is nothing you can do to fix it.
Take it to an authorized repair center
SOURCE: hp laserjet p2055dn Replace fuser unit
That is a job by it self. If you don't want to damage your printer, I'd suggest you take it to an HP dealer pay some money and get it first checked and if so be the case that it has to change, let them change it.
SOURCE: Model - HP Laserjet P2055dn. Issue - 49 Err
I had the same problem. The source of this problem, the USB printer port is broken, then I use network configuretion. The poblem is solve.
SOURCE: I have HP Laserjet P2055dn
This is a problem with the RAM module you will need to replace it.
SOURCE: Model - HP Laserjet P2055dn.
If your printer is getting a 49.xxxxx error after powering on, it has major problems, and a repair shop visit is in order.
The error in itself is a "critical firmware error"
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