The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 02, 2014
Filed:
Feb. 17, 2012
Yuan Chang, Newtown Square, PA (US);
Yuan Chang, Newtown Square, PA (US);
Other;
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 Gand 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 Gwill 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.