Power supply switch RM2-5896 fits for HP M154 M252 M256 M277 M280 M281 M180 M181
Scanner Assembly fits for HP M277 M280 M281 M377 M426 M427 M477. Scanner Motor Rack fits for HP M277 M280 M281 M426 M427 M377 M477. 220V POWER SUPLLY BOARD RM2-9509 fits for HP M154 M180 M181 M281 M284 M254 M280.