Dell C2665dnf Color Laser Printer - Manual (Page 487)

1
Removing the 2nd BTR
Pinching the tabs on both sides of the 2nd BTR, lift it out of the printer.
Installing a 2nd BTR
1 Unpack a new 2nd BTR.
2 Hold the 2nd BTR by both its ends.
3 Make sure that the arrow marks on the 2nd BTR and the printer face each other, and then press down the 2nd BTR
until it clicks.
Maintaining Your Printer 485