Printer with belt tensioning unit
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United States of America Patent
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Apr 12, 2011
Grant Date -
Aug 14, 2008
app pub date -
Nov 14, 2007
filing date -
Feb 9, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A thermal transfer printer having a configuration in which a drive power of one motor is transmitted to a platen roller and a ribbon conveying mechanism can be easily assembled. The printer has: (a) a printing medium feed reel, (b) a ribbon feed reel, (c) a platen roller, (d) a thermal head, (e) a ribbon conveying roller, (f) a ribbon take-up reel, (g) a motor that drives the platen roller, (h) a rotary drive mechanism that transmits a drive power of the motor to the ribbon conveying roller via a first belt and transmits a drive power of the motor to the ribbon take-up reel via the first belt and a second belt, and (i) a tension unit comprising a plurality of pulleys that are in contact with the first and second belts and rotate following the movement thereof, a plurality of elastic members that adjust positions of the plurality of pulleys so as to apply tension to the first and second belts, and a plurality of fixing members that fix the positions of the plurality of pulleys.
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