| 摘要 |
The disclosure concerns an ink supply device for use in a labeling machine. The ink supply device includes at least one inking roller. Guide slots formed in the side plates of the frame of the labeling machine guide the inking roller to roll over the printing surface of a printing head. Guide rollers that support the inking roller are received in the guide slots. In another embodiment, there are additional bearing plates attached at both ends of an inking roller. These plates are engageable with the lower end surfaces of the printing head. In other embodiments, two inking rollers are provided. Each inking roller is biased and guided in a different way. Springs may bias both rollers toward the print surface, or may bias only one roller. The rollers main embodiment may be guided to vertically shift over the print surface by the guide slot in the frame.
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