Patent ID: 6773089
Filing Date: 2004-08-10
Classification: B41J

Abstract:
A liquid discharge head comprising:a plurality of nozzle arrays each provided with a plurality of nozzles and each arranged substantially in parallel to a print medium conveying direction; and a plurality of discharge energy generating portions for discharging liquid from said nozzles, respectively, said liquid discharge head moved to scan in a direction crossing said conveying direction, said liquid discharge head; wherein each of said nozzle arrays has a first nozzle group in which a pitch of said nozzles is set to a first pitch, and second nozzle groups arranged on both end sides of the corresponding nozzle array and each having at least a third nozzle group provided with said nozzles arranged at a second pitch greater than said first pitch, and said first pitch and said second pitch are set so as to differ depending on a volume of a liquid droplet to be discharged.