Brother PT-MT Manuale di servizio - Pagina 13

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Brother PT-MT Manuale di servizio
2.1.5

Cutter Safety Lock Mechanism

When the cassette cover is opened and no tape cassette is loaded, the roller holder ASSY
is retracted from the thermal head with the roller holder spring (as described in Subsection
2.1.2). In this retracted position, the cutter lever stopper of the roller holder ASSY blocks
the end of the cutter lever, preventing the cutter lever from pushing the cutter blade out of
the cutter unit for safety, as shown below.
Closing the cassette cover or loading a tape cassette releases the cutter safety lock
mechanism. If you close the cassette cover, the roller holder ASSY pivots towards the
thermal head so that the cutter lever stopper does not interfere with the cutter lever.
When a tape cassette is loaded, its outer edge pushes the tab of the roller holder ASSY to
pivot the roller holder ASSY towards the thermal head so that the cutter lever stopper
does not interfere with the cutter lever.
Figure 2.1-5 Cutter Safety Lock Mechanism
Figure 2.1-6 Releasing the Cutter Safety Lock Mechanism
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