Liquid emitting device and liquid emitting method

Abstract

A printer is provided which sprays ink from nozzles to print recording paper P. It includes a paper feed / delivery mechanism (72) to carrying the paper P to which the ink is to adhere, nozzles (52a) to spray the ink as droplets, an ink-spraying head (45) to spray the ink from the nozzles toward the paper P having been carried to a position opposite to the nozzles, an ink-spraying controller (123) to control the ink-spraying head (45) to spray the ink from the nozzles in predetermined timing, a temperature sensor (74) to detect the ambient temperature and / or humidity when spraying the ink from the nozzles, a speed discrimination unit (73) to judge whether the carrying speed of the paper P has been changed, a memory (128) having stored therein ink-spraying control data intended for controlling the spraying timing correspondingly to the type of the paper P, and a controller (129) to delay, when the carrying speed of the paper P has been increased in the process of printing, the timing of spraying ink in other color than black based on the temperature detected by the temperature sensor and ink-spraying control data for the type of the paper P, pre-stored in the memory, in relation to that which is before the carrying speed of the paper P is increased, thereby projecting the other ink than the black ink to a position to which the black ink is to be projected.

Description

technical field [0001] The present invention relates to an apparatus and method for ejecting a liquid, wherein the liquid is ejected from a nozzle onto recording paper in the form of droplets under pressure generated by a pressing member. [0002] This application claims the priority of Japanese Patent Nos. 2003-376116 and 2003-376117, both of which were filed on November 5, 2003, the entire contents of which are incorporated herein by reference. Background technique [0003] Inkjet printers are seen as a common conventional liquid ejection device. In an inkjet printer, ink is ejected from small holes in a liquid ejection head onto recording paper to form graphics and / or characters on the paper. Inkjet printers have the advantages of low cost of use, compact structure, and easy printing of color images. In an inkjet printer, an ink cartridge supplies colored ink to an ink well or the like in a liquid ejection head. Ink cartridges are provided by ink color such as yellow, ...

AI Technical Summary

Problems solved by technology

The techniques suggested in these unexamined patent application publications can be effectively applied to serial liquid-dispensing devices, but not to any line-head liquid-dispensing devices

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