Panasonic KX-P8420 Benutzerhandbuch

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To replace the printer controller board:
 
1
 
Align the printer controller board with the groove on the 
back of the printer and carefully slide it back inside the 
printer.
 
2
 
Tighten the two thumbscrews on the printer controller 
board that you loosened earlier, using a cross-point 
head (+) screwdriver.
 
3
 
Plug in the power cord and reconnect any cables to the 
back of the printer.
Printer controller board