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US 6,660,103 B1Granted
Cleaning process for ink jet printheads
AssigneeVutek, Inc.
InventorsIan Johnston, Greg Sinchar
Life of this patent
Estimating the term…
Abstract
A method of cleaning ink jet printheads without rendering the printheads inoperative by soaking the printheads in a cleaning solution of acetone and n-methyl-2-pyrolidine, and then flushing the printhead with a gas, such as air. The solution is made of about 70% acetone and about 30% n-methyl-2-pyrolidine by weight.
Claims30
A method of cleaning ink jet printhead, comprising the steps of:
- first soaking the printhead in a solution of acetone and n-methyl-2-pyrolidone;
- and then
- flushing the printhead with a gas.
A method of cleaning an ink jet printhead, comprising:
- soaking the printhead in a solution made of acetone and n-methyl-2-pyrolidone;
- flushing the printhead with air;
- repeating the soaking and the flushing steps two additional times;
- flushing the printhead with a solution of glycol ether DPM acetate;
- and
- observing the streaming of the solution of glycol ether DPM acetate from one or more nozzles of the printhead.
3 more elements
Dependencies are inferred from the claim text.