| 摘要 |
The platen bearings 52 a, 52 b attached to the shaft end parts 51 a, 51 b of the removable platen roller 5 are pressed by lock levers 8 a , 8 b to bearing insertion slots 7 a, 7 b that are formed in the main frame 3 of the thermal printer 1 so that the positions of the platen bearings 52 a , 52 b are determined by two points A, B on the main frame and one point C on the lock lever.
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