Cleaning ink jet printheads and orifices

Details Cleaning ink jet printheads and orifices Cleaning ink jet printheads and orifices

B - Operations, Transporting

41

J

B41J 2/165 (2006.01)

Patent

CA 2399162

Cleaning apparatus for cleaning debris from orifices in an ink jet printhead nozzle plate includes a structure defining a cleaning cavity between two horizontally contacting rollers where cleaning liquid is loaded, agitated, and dynamically sealed in the cavity trough the rotation of the rollers. A relative movement is also provided between the nozzle plate and the cleaning structure so that the nozzle plate can be positioned above the cleaning cavity with the rotating rollers. The nozzle plate is spaced a small distance from the flow of the cleaning liquid that the cleaning fluid fills this small distance. The flow causes the cleaning fluid to engage the nozzle plate and remove debris from the nozzle plate and orifice nozzles. After the cleaning cycle has ended the cleaning fluid is discarded.

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