2 ] Identification Of Tape Cassette Type - Brother PT-H100 Service Manual

[ 2 ] Identification of Tape Cassette Type

The cassette sensor PCB has three sensor switches (1, 2 and 3). Loading a tape
cassette turns on some of those switches while keeping others off depending upon
the ID encoding holes provided in the tape cassette currently loaded. If an encoding
ID hole is closed, the corresponding sensor switch goes on.
With the states of those sensor switches, the CPU identifies the tape width and tape
cassette type, as listed below.
Table 2.2-1 Coded Value for Identifying Tape Cassette Type
Tape width
---
3.5 mm
6 mm
9 mm
12 mm
0: Sensor OFF (ID hole opened)
1: Sensor ON (ID hole closed)
Cassette type
No tape cassette loaded
Non-laminate tape cassette
Laminate tape cassette
Laminate tape cassette
Non-laminate tape cassette
Laminate tape cassette
Non-laminate tape cassette
Fabric tape cassette
II - 14
Sensor No.
1
0
1
0
0
0
1
1
Position of the cassette sensor switches
2 3
0 0
1 0
0 1
1 1
1 0
0 1
0 0
2
3 1