Brother TD-2020 - Bluetooth Interface Setup; Connecting Computer and Printer by Bluetooth

II - 3
2.1.3 Tape Feed Mechanism
When the tape is fed, it is caught between the platen roller and the head ASSY, and is
eventually pressed against the head ASSY. This rotates the tape feed motor ASSY,
and its drive power is transmitted to the platen gear and the platen roller via the gear
train, and consequently the platen feeds the tape.
Figure 2.1-3 Tape Feed Mechanism
Tape
Head ASSY
Platen roller
Platen gear
Double gear C
Double gear A
Double gear B
Tape feed motor ASSY