| 摘要 |
A plunger type electromagnetic hammer assembly for use with a printer including a hammer housing having a magnetic flux emitting surface. The hammer assembly includes a hammer slidably situated in the housing wherein the hammer includes a plunger portion having a first radius and a head portion having a second radius. The plunger portion and the head portion are coupled by a neck portion having a third radius, the third radius being less than the first radius and than the second radius. The plunger, neck and head portions are coaxially oriented. A biasing structure biases the hammer away from the platen. A magnetic flux on the magnetic flux emitting surface causes the hammer to slide toward the platen.
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