| 摘要 |
A printer ribbon distinguishing method and apparatus therefor, distinguishes a color ribbon, a black ribbon with a clear patch and a black ribbon without a clear patch in a sublimating type color printer. The apparatus has a first sensor having a characteristic in that light generated from a light emitting unit penetrates yellow, magenta and clear patches of a ribbon but does not penetrate cyan and black patches; a second sensor installed on a straight line with the first sensor widthwise of the ink ribbon and having a characteristic in that the light generated from the light emitting unit penetrates the yellow and clear patches of the ink ribbon but does not penetrate magenta, cyan and black patches; a third sensor installed on an opposite side of the first and second sensors widthwise of the ink ribbon but not on a straight line with the first and second sensors, and having a characteristic in that the light generated from the light emitting unit penetrates the yellow and clear patches but does not penetrate the magenta, cyan and black patches.
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