Patent ID: 6247789
Filing Date: 2001-06-19
Classification: B41J

Abstract:
A liquid ejection apparatus comprising:an ejection tank disposed above a conveying path of an image-recording material so as to oppose the conveying path, and having an interior for storing an image-forming solvent;a linear nozzle plate provided at said ejection tank as a bottom wall of said ejection tank so as to oppose the conveying path of the image-recording material, and having a plurality of nozzle holes aligned linearly so as to form a row of said nozzle holes, for ejecting the image-forming solvent; andactuator means disposed at side walls of said ejection tank and which are coupled to said nozzle plate by displacement transmission means, for moving the plurality of nozzle holes in said nozzle plates reciprocally toward and away from the image-recording material on the conveying path to eject a plurality of drops collectively in a linear direction from said row of nozzle holes;wherein the image-forming solvent is water, and a bottom surface of said nozzle plate is subjected to water repellent processing; andwherein corner portions of said nozzle plate at peripheries of the nozzle holes at said interior of said ejection tank have curved cross-sectional structures.