A doughnut hickey produced by particles of ink skin collecting on the image area of a plate, press blanket, gravure cylinder, or other image-carrying surface. See Hickey and Doughnut Hickey.
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A doughnut hickey produced by particles of ink skin collecting on the image area of a plate, press blanket, gravure cylinder, or other image-carrying surface. See Hickey and Doughnut Hickey.