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Inkjet printing apparatus

An inkjet recording and inkjet head technology, applied in printing devices, printing and other directions, can solve problems such as instability and inkjet head contamination, and achieve the effects of improving quality, reducing individual differences, and reducing contamination

Inactive Publication Date: 2016-07-20
KONICA MINOLTA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This causes destabilization of ejection from nozzles and contamination around the inkjet head.

Method used

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Examples

Experimental program
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no. 1 approach

[0048] Hereinafter, the inkjet recording device 100 of the first embodiment will be described with reference to the drawings.

[0049] Such as figure 1 As shown, the inkjet recording device 100 is an inkjet line printer, and ink is ejected from an inkjet head 12 serving as an ink ejection unit to a recording medium P to form an image on the recording medium P. The inkjet line printer has nozzles over the same range as the maximum width of the inkjet head unit that has a plurality of inkjet heads that can form an image in the medium width direction perpendicular to the conveyance direction, and is carried out on the conveyed recording medium. An image is formed without moving the inkjet head unit in the medium width direction.

[0050] In addition, the inkjet recording apparatus 100 exemplified below performs image formation on a flat surface of a sheet-shaped cut paper or a film base material as the recording medium P. As shown in FIG.

[0051] In addition, in the following ...

no. 2 approach

[0142] An inkjet recording device 100B according to the second embodiment will be described. Regarding the configuration of the inkjet recording device 100B, the same configurations as those of the inkjet recording device 100 described above are denoted by the same reference numerals and redundant descriptions are omitted.

[0143] The inkjet recording apparatus is not limited to a structure in which the recording medium P is conveyed by a belt, for example, as Figure 11 As shown, it can also be applied to a drum type line inkjet printer.

[0144] In this case, the inkjet recording apparatus 100B has five inkjet head units 1 for discharging inks of white (W), yellow (Y), magenta (M), cyan (C), and black (K). , a support frame 2B, a conveyance unit 3B, five suction mechanisms 5 provided on the downstream side of each inkjet head unit 1 in the conveyance direction, a supply unit 6 , and a discharge unit 7 . In addition, the structures and functions of the inkjet head unit 1 ,...

no. 3 approach

[0162] based on Figure 12 An inkjet recording apparatus 100C according to the third embodiment will be described. Regarding the configuration of the inkjet recording apparatus 100C, the same configurations as those of the inkjet recording apparatus 100 described above are denoted by the same reference numerals and redundant descriptions are omitted.

[0163] In the inkjet recording apparatuses 100 and 100B described above, paper or a sheet is used as a recording medium, but in this inkjet recording apparatus 100C, an image is formed on a recording medium Q made of tiles.

[0164] In this inkjet recording apparatus 100C, each inkjet head unit 1 , support frame 2 , conveyance unit 3 , and each suction mechanism 5 have the same configuration as that of the inkjet recording apparatus 100 .

[0165] However, since the recording medium Q of ceramic tiles is thicker than paper and sheets, each inkjet head unit 1 and the suction mechanism 5 are additionally provided with respect to ...

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Abstract

The inkjet printing apparatus is provided with: a conveyor unit (3) for conveying the print medium (P); and multiple ink-discharging units (1) disposed in a row along the print medium conveyance direction (X). Each of the multiple ink-discharging units is provided with a suction mechanism (5) adjacent to said ink-discharging unit on the downstream side in the conveyance direction. The suction opening (511) of the suction mechanism is disposed so as to be closer to the ink-discharging unit adjacent to said suction mechanism on the upstream side in the conveyance direction than the ink-discharging unit adjacent to said suction mechanism on the downstream side in the conveyance direction.

Description

technical field [0001] The present invention relates to an inkjet recording device. Background technique [0002] An inkjet printer is known as an inkjet recording device capable of forming images on various recording media such as plain paper and plastic sheets. In an inkjet printer, main droplets forming ink dots and minute satellite droplets (satellite droplets) may be ejected together from the nozzles of the inkjet head. The satellite droplets are smaller than the main droplets, so they are easily affected by air resistance, and the flying speed slows down immediately after ejection, become mist and float in the air, and adhere to the nozzle surface of the inkjet head, etc. This causes destabilization of ejection from the nozzles and contamination around the inkjet head. [0003] Therefore, in the conventional inkjet recording apparatus, the suction mechanism of the satellite droplet is provided on the downstream side of a plurality of inkjet head units arranged along ...

Claims

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Application Information

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IPC IPC(8): B41J2/17B41J2/155
CPCB41J2/17B41J29/377
Inventor 清水大嗣石桥大辅
Owner KONICA MINOLTA INC
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