Brother HL-2600CN Series - Manual (Page 124)

CHAPTER 5 MAINTENANCE
5-12
5. Install the new Oil Bottle into the
Fusing Unit with the label facing
you. The Oil Bottle is keyed to
prevent incorrect installation.
Fig. 5-7
6. Lock the Oil Bottle Lock Levers securely.
7. Close the Top Cover.
8. Press the Power button to turn the printer On.