Brother HL-3450CN Series User Manual page 151

Press Set, and then press + until "240K KIT" appears.
10.
Press Set, and then press Go. The printer is now in the READY state.
11.
Note
•
User replacement of some of these parts is not recommended.
•
For replacement of the Paper Feeding Roller, Separator Pad and the
Transfer Drum, consult your local dealer/retailer.
•
Actions 7 to 11 should only be carried out by your dealer or Brother
authorized service center when they replace the Paper Feeding
Roller, Separator Pad and the Transfer Drum.
•
Replacement of only the Transfer Roller is not a full 240K service so
the counter should not be reset until these additional parts are
replaced.
5-35
CHAPTER 5 MAINTENANCE