| 摘要 |
There is described a method and a system for cleaning an ink chamber ( 1 ) of a printing unit. The system includes a storage tank ( 10 ) which via a high-pressure pump ( 9 ) is connected with a hydrophore ( 2 ). In the hydrophore a high pressure is built up, and the hydrophore is connected with cleaning nozzles ( 40 ) via a valve ( 5 ). Thus it becomes possible to inject a shot of cleaning liquid into the chamber by switching the valves ( 5 ). The cleaning nozzles are preferably designed as a mushroom-shaped plug ( 40 ) with a stem ( 41 ) which is mounted in the chamber wall and which has a circular domed top ( 43 ) of elastic, resilient material. When injecting cleaning liquid, the elastic plug will spray cleaning liquid out into the chamber, and after shutting off the pressure, there will be a self-closing effect.
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