| 摘要 |
PURPOSE: A bulldozer type cleaning system is provided to remove ink residue from an electrostatic drop detector, which detects ink droplets contacting a detector. CONSTITUTION: In a system(80) of cleaning ink residue, a scraper head(90) scrapes the ink residue from a sensor, and then contacts a flexible, compliant cleaning member, illustrated as a coil spring(100). The spring is secured at each end(102,104) and is stretched when pushed by the scraper head. The stretching flexing action allows the spring to trap the ink residue between the coils. As the scraper head retracts, the resulting contracting flexing action of the spring squeezes the ink residue from between the coils. Any ink residue remaining on the coils dries and then flakes off the coils when the spring is stretched again during the next cleaning stroke of the scraper head. An inkjet printing mechanism having such a cleaning system, and a method of cleaning a sensor are also provided.
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