Brother HL-3450CN Service Manual page 199

(2) Pull up the transfer roller to remove it.
(Fig.6-20)
(3) Install a new transfer roller into the
printer.
(4) Fix the transfer roller with the lock
levers.
Sequence of Assembling
(1) Close the rear access cover.
(2) Plug the power cable into the power outlet and turn on the printer.
(3) Upon completion of the warming-up process.
(4) Press any of the Menu buttons (+, -, Set or Back) to take the printer Off Line.
(5) Press + or – until "RESET MENU" appears.
(6) Press Set to proceed to the next menu level, and then press + or – until "PARTS LIFE"
appears.
(7) Press Set, and then press + until "240K KIT" appears.
(8) Press Set, and then press Go. The printer is now in the READY state.
Transfer roller
6-27
HL-3450CN SERVICE MANUAL
Fig. 6-21