| 摘要 |
A media handler (10) comprises a pick unit (20) arranged to receive a media cassette (24) defining a stub (82); a detent (90) mounted on the pick unit (20) and resiliently biased to protrude into a path (84) traversed by the stub (82) until deflected by the stub (82); and a latch (26,426) pivotably mounted to the pick unit (20). The latch (26,426) defines: (i) a flag portion (70,470) and (ii) a recess (72,472) engagable by the stub (82) as the cassette (24) is fully inserted into the pick unit (20). The latch (26,426) is moveable between (i) an open position in which the detent (90) prevents the latch (26,426) from moving and (ii) a closed position in which the detent (90) has been deflected by the stub (82) and the recess (72,472) engages with the stub (82). Complete insertion of the cassette (24) causes the stub (82) to deflect the detent (90) out of the path (84), thereby allowing the latch (26,476) to pivot from the open to the closed position and the recess (72,472) to engage with the stub (82) to lock the cassette (24) in position.
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