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Inkjet printer and printing method

一种喷墨打印机、印刷方法的技术，应用在印刷等方向，能够解决图像劣化、浓度不均等问题

Active Publication Date: 2015-03-25
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generation of density unevenness leads to image degradation and is therefore not desirable

Method used

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  • Inkjet printer and printing method
  • Inkjet printer and printing method
  • Inkjet printer and printing method

Examples

Experimental program
Comparison scheme
Effect test

no. 3 approach

[0055] 4. Examples of various changes:

[0056] 1. The first embodiment:

[0057] figure 1 It schematically illustrates the hardware configuration and software configuration of the present embodiment. figure 2 Illustrated are a part of each nozzle row of each color of CMYK on the ejection hole surface 22 (the surface on which the opening of the nozzle 21 is formed) of the print head 20 and the dots printed on the object to be printed by the nozzle row.

[0058] in figure 1 A personal computer (PC) 40 and a printer 10 are shown in FIG. The printer 10 is an inkjet printer. A system including the PC 40 and the printer 10 can also be used as a printing device. The printer 10 has a control unit 11 for controlling printing processing. In the control unit 11, the CPU 12 expands the program data 14a stored in a memory such as the ROM 14 in the RAM 13, and performs operations in accordance with the program data 14a under the operating system (OS), thereby running firmware that controls th...

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PUM

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Abstract

An inkjet printer includes a print head, a nozzle position specifying section and a print control section. The print head includes a plurality of nozzles to eject ink. The nozzle position specifying section is configured to specify a position of a first nozzle that exhibits defective ejection. The print control section is configured to print dots in a plurality of sizes. The print control section is configured to change a dot size of a dot to be printed by a second nozzle, which is positioned adjacent to the first nozzle, to a larger size than a dot size specified in an image data, and to change a dot size of a dot to be printed by a third nozzle, which is positioned adjacent to the second nozzle, to a smaller size than the dot to be printed by the second nozzle after the change.

Description

Technical field [0001] The invention relates to an inkjet printer and a printing method. Background technique [0002] A printer refers to an output device (JIS X0012-1990) that uses a pre-determined sequence of discrete graphic characters belonging to one or more character sets as the main style to produce hard copy records of data. In most cases, the printer can also be used as a plotter. [0003] Plotter refers to an output device (JIS X0012-1990) that directly produces hard copy records of data in the form of flat graphics on a removable medium. [0004] An ink jet printer refers to a non-impact printing device that forms characters on paper by ejecting particles or droplets of ink (JIS X0012-1990). As one method of a dot printer, characters or images expressed by a plurality of dots formed by ejecting particles or droplets of ink are printed. [0005] In inkjet printers, ink cannot be ejected from the nozzles due to clogged meshes, the ejected ink does not trace the correct tra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/01
CPCB41J2/04581B41J2/04593B41J2/2132B41J2/2139B41J2/2142
Inventor 须藤直树佐藤彰人
Owner SEIKO EPSON CORP