Rf-640 won't turn on

[Topimpress]

Hi,
Rf640 won't turn on. turn off the back switch and turned on the printer turn on
this fault became random
any idea..??
thx

 

[damonCA21]

It could be pretty much anything. Bad socket, lead, switch, control panel, cables, mainboard, loose connection... You would really need to try and trace the power from the socket through each part of the printer and test them