| 摘要 |
There is disclosed a hand-held apparatus for printing and applying pressure sensitive labels, the apparatus having a frame with a handle, an actuator disposed at the handle and movable between an initial position and an actuated position, a platen, a print head cooperable with the platen, a label delaminator adjacent the platen, a label applicator adjacent the delaminator, a feed wheel for advancing the web, a stop on the actuator, a pivotally mounted print head lever, a spring for urging the print head lever against the stop, ratchet teeth coupled to the feed wheel, a first pawl carried by the actuator and cooperable with the ratchet tooth to drive the feed wheel, the print head lever having a tooth, a second pawl cooperable with the tooth after the actuator has moved from an initial position through an increment toward the actuated position, the second pawl being effective to prevent rotation of the lever as the actuator is moved through an additional increment toward the actuated position, and a projection carried by the actuator for releasing the second pawl from the lever tooth when the actuator has moved through the additional increment to enable the spring to drive the print head into printing cooperation with the platen.
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