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Inkjet printer and printing method

An inkjet printer and print head technology, applied in printing devices, printing and other directions, can solve the problems of shortening, poor life, and poor print head life, and achieve the effect of improving life and suppressing poor ejection.

Inactive Publication Date: 2007-02-07
SEIKO PRECISION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technology fails to solve the above-mentioned problems of life difference between ink nozzles that are frequently used and ink nozzles that are hardly used, and the problem that the life of the entire print head is shortened due to the life difference.

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

Embodiment Construction

[0051] Next, an inkjet printer 10 according to an embodiment of the present invention will be described. The inkjet printer 10 is used to print the tasting period for each packaging unit of a printing medium composed of packaging materials.

[0052] Such as figure 1 As shown, a packaging device including an inkjet printer 10 prints, for example, the expiration date for each packaging unit on a packaging film (printing medium) F supplied from a supply roller, and packages products with the packaging film. The inkjet printer 10 prints the expiration date on the packaging film F supplied by the supply roller 101.

[0053] The take-up roller 102 takes up the packaging film F printed with the expiration date. On one side in the width direction of the packaging film F, a register mark M is printed in advance at a certain interval (per packaging unit, for example, every 300 mm). The take-up roller 102 is rotatably driven by the printing medium conveying device 103. When the winding roll...

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PUM

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Abstract

Data are printed for a predetermined number of times in a printing region having a width W2 smaller than the maximum printing width W1 of a printing head (26). The printing is made by using a predetermined ink nozzle (26d) while a printing medium (F) is moved relative to the printing head (26) with the position of the printing head (26) relative to the direction perpendicular to the direction (X) in which the printing medium (F) is fed fixed. After that, every time when printing is performed for a predetermined number of times while the printing medium (F) is moved for a predetermined distance at a time, the printing head (26) is moved in the direction perpendicular to the direction (X) in which the printing medium (F) is fed, and again printing is performed in the printing region, with the printing head (26) fixed, by using an ink nozzle (26d) that is different in at least one part from the ink nozzle (26d) used before the printing head was moved.

Description

Technical field [0001] The invention relates to an inkjet printer, in particular to a line inkjet printer and a printing method thereof. Background technique [0002] Inkjet printers are roughly classified into serial printers that drive the print head in the line direction during printing, and line printers that print without moving the print head. [0003] Serial inkjet printers are generally used for civilian use. On the other hand, line inkjet printers are used in industries such as packaging films, cardboard boxes, and other printing media that print specific printing target areas to print the manufacturing year, month and day (the expiration date), bar codes, and information block codes. A serial inkjet printer has a plurality of inkjet nozzles arranged in the transport direction of the printing medium, and prints while moving the print head in a direction (row direction) orthogonal to the transport direction of the printing medium. [0004] After the serial inkjet printer ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/01B41J2/21B41J11/00
CPCB41J2/2132B41J2/04513B41J11/0095B41J2/04586B41J11/008
Inventor 城田和卫大塚史生
Owner SEIKO PRECISION CO LTD