Inkjet printer's ink protection method
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United States of America Patent
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Sep 2, 2014
Grant Date -
Dec 19, 2013
app pub date -
Feb 17, 2012
filing date -
Feb 18, 2011
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Abstract
The present invention relates to a kind of inkjet printer's ink protection method including: the developer generates a rechargeable code in accordance with the print head's nPL, total ink volume G0 and user's identifying information provided by the user; the user purchases ink and its corresponding rechargeable code, inputs the rechargeable code into the printer's control system, and fills ink cartridge in the ink supply system with ink; the printer's control system verifies the effectiveness of the rechargeable code; if the rechargeable code is effective, total ink volume G0 will be added into the ink counter; if not, the rechargeable code is output as ineffective. This ink protection method in the present invention can increase ink utilization rate, reduce the waste of resources and cost, protect the environment, avoid equipment breakdowns caused by using unqualified ink, and improve printer's operating stability. What's more the present ink protection method utilizes printer's software and hardware technologies in prior art, needs no extra equipment, and thus has strong practicability and is cost effective.
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