Preventing Soiling of the Object to Be Printed On and Dot Drop-out
Removing the ink buildup on the print head surface before or during printing prevents soiling of the object to be printed on, dot drop-out, and dot displacement.
In the following cases, ink tends to collect on the surface of the print heads.
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When you use an object to be printed on that is prone to a buildup of static charge
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When the ambient temperature is low.