Hp Lj pro M521DN Error 52

[Gary G]

I have a HP LJ Pro M521DN that has a error code of 52 scanner problem. I don't have a manual for the machine. I think this code is for the LSU. Would anyone have a manual to share? or at least the pages for how to change it and a part number. TIA
Gary

[Wild Bill]

Re: Hp Lj pro M521DN Error 52

52.0000 Engine laser scanner error;
Laser/scanner RM1-6322