Roller Holder Assy Setting & Retracting Mechanism - Brother PT-1090 Service Manual

2.1.2 Roller Holder ASSY Setting & Retracting Mechanism
This mechanism consists of the roller holder ASSY and the holder cam.
The cassette cover has a holder cam on the inside. Closing the cassette cover
causes its holder cam to press section A of the roller holder ASSY as shown below.
This pivots the roller holder ASSY around the shaft provided on the frame ASSY so as
to press the roller holder ASSY against the thermal head side.
Platen roller
Tape feed
sub roller
Thermal head ASSY
Tape
cassette
Platen idle
gear
(Roller holder ASSY retracted)
Cassette cover
Figure 2.1-2 Holder Cam on the Cassette Cover
Thermal head ASSY
Roller holder
release spring
Shaft
Roller holder ASSY
Platen roller
Figure 2.1-3 Holder Cam and Roller Holder ASSY
Holder cam
Tape cassette
Holder cam
Holder cam
Roller holder ASSY
(Roller holder ASSY engaged)
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