초록

A fluid ejection device includes drive circuitry for a heating element, wherein at least part of the drive circuitry is positioned proximate to and within 60 microns of the heating element.

대표청구항 ▼

A fluid ejection device includes drive circuitry for a heating element, wherein at least part of the drive circuitry is positioned proximate to and within 60 microns of the heating element. ording to claim 5, wherein said setting means comprises regulation means for regulating an upper limit of an a

A fluid ejection device includes drive circuitry for a heating element, wherein at least part of the drive circuitry is positioned proximate to and within 60 microns of the heating element. ording to claim 5, wherein said setting means comprises regulation means for regulating an upper limit of an amount of ink ejected per unit area, and wherein the number of times the ink is discharged is regulated in accordance with said regulation means. 8. The system according to claim 1, wherein said first and second types of ink-jet printheads comprise first and second multiple ink-jet printheads having a plurality of discharging portions for discharging inks having different hues, both said ink-jet printheads for discharging inks having substantially the same lightness, and said setting means sets substantially the same drivig conditions for inks having substantially the same lightness regardless of density of the first and second inks. 9. The system according to claim 1, wherein the first type of ink-jet printead comprises a first multiple ink-jet printhead for discharging a plurality of inks having apparently different hues, and the second type of ink-jet printhead contains an ink having substantially the same lightness as that of an ink of the first type of ink-jet printhead, and an ink having a density lower than a density of an ink contained in the first type of ink-jet printhead. 10. The system according to claim 1, wherein said setting means converts input color image data expressing each pixel as M-levels into color image data expressing each pixel as N-levels (N