Drum-changeable device for a printer
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United States of America Patent
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Issued Date -
Sep 23, 2010
app pub date -
Dec 27, 2007
filing date -
Dec 27, 2007
priority date (Note) -
Abandoned
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Abstract
A drum-changeable device for a printer comprises a plurality of drums and a switch device. The drums are disposed under the work surface of a printer. Each drum has a plurality of protrusions covered by the same kind of material and the protrusions of different drum are covered by different kinds of material for moving forward printing articles of different kinds of material. The switch device is connected with the drums for moving a suitable drum toward the work surface of the printer according to the kinds of material of the printing articles.
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