HP LaserJet CM1015 MFP All-In-One Printer "network printing lot symbols" Questions

PRINTING TO A NETWORK PRINTER (MINOLTA). I CAN PRINT EVERYTHING FINE, BUT WHEN I ATTEMPT TO PRINBT A PDF FILE THERE'S JUST A LOT OF SYMBOLS ON THE PAGE...WE TRIED RESTARTING THE PRINTER BUT IT'S STILL

network with about 12 computers attached to it. One day when I wasn't here, (so im not sure how it started) It started printing A LOT of sheets with random symbols on it. How do we make this stop?

...Network Printing and when I have checked I found that the Manual IP address given to the printer lost. The printer control panel shows IP address as 000.000.000.000 I tried several time to set the IP ...