You need to be a little bit more specific nex time, the error 49 its normally related to an internal communication error between the DC Controller and the formatter board on the unit
Now we need to know if the problem appear when scanning, copying, printing, sending or receiving faxes
Heres some troubleshooting you can follow, its going to clear this error 49 most of the cases :
1. Turn off the product.
2. Press and hold both the down arrow button and the Cancel button, and then turn on the product.
3. Wait until the message Permanent storage init. appears, and then release the buttons.
4. When the printer comes back to ready, go to hp.com and download the latest firmware update for this 1522nf
if you need more assistance you can contact me at :