HP INCFollow


Many inkjet printers use an elastomer cap to form a hermetic seal around the printhead

while also providing a mechanism for venting, such as to prevent pressure spikes when capping and

also to prevent pressure differentials such as due to environmental swings in temperature and

pressure. The present paper describes a method for guiding ink flow out of a printhead through

capping lips of the elastomer cap. The purpose of capping system is to reduce the rate of vehicle

loss from the pen’s nozzles. For instance, capping may help prevent the pen from falling out of PQ

spec due to vehicle loss.

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Creative Commons License
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