| 摘要 |
A uni-directional waste ink removal system cleans ink residue from an electrostatic sensing element of an ink drop detector in a printing mechanism when the electrostatic sensing element, supported by a base, is actuated between an activated position, a storage position, and back to the activated position. The system also includes a scraper and an absorber which first contact the sensing element when the base is in the storage position, thereby ensuring ink residue may be absorbed, and that ink residue is only scraped from the sensing element in one direction as the base is moved to the activated position. A method of cleaning ink residue from an electrostatic sensing element of an ink drop detector, and a printing mechanism having such a unidirectional waste ink removal system are also provided.
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