Patent ID: 6116717
Filing Date: 2000-09-12
Classification: B41J

Abstract:
A method for customizing control of a print cartridge to improve quality of print produced using said print cartridge which includes a cartridge body containing ink and a printhead secured to said cartridge body and defining ink ejection nozzles, said method comprising the steps of:determining resistance values of nozzle control paths on said print cartridge, said nozzle control paths corresponding to said ink ejection nozzles of said printhead;determining energy requirements for said ink ejection nozzles based on said resistance values so that ink is ejected substantially uniformly from said ink ejection nozzles;determining the masses of droplets ejected from said ink ejection nozzles of said printhead in response to control signals based on said energy requirements;determining revised energy requirements for said ink ejection nozzles based on the masses of droplets ejected in response to said control signals, said revised energy requirements making the masses of ink droplets ejected from said ink ejection nozzles substantially uniform; andstoring said revised energy requirements as energy requirements specific to said print cartridge in a memory device mounted on said print cartridge.