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KM1024i Printhead: Basic Information You Should Know

Konica Minolta’s KM1024i printhead is a cutting-edge piezo on-demand print head for industrial use, with an independent drive system for each nozzle channel. At the same time, the KM1024 series adopts a 3-cycle drive system. The independent drive system makes the KM1024i approximately three times faster than the KM1024 series models.

The higher drive speed significantly improves the performance of the new print head for industrial inkjet printers. And mainly for ceramic printing or label printing, which require higher productivity. The print head structure with high ink durability and the high-performance built-in heater support stable print quality when used with high-viscosity inks for ceramic printing.

KM1024i Printhead-Innovative Structure

The unique internal structure of the “KM1024i series” printhead can suppress the easy precipitation of ink and achieve stable jetting.

KM1024i Printhead-Innovative Structure

Konica 1024i Printhead-Line Speed and Color Density

The below figure is a line speed analysis table of KM1024iMHE-13 and KM1024iLHE-30. The printing speed of the common piezoelectric printhead with a shared wall structure on the market is about 24m/min (360 dpi). The printing speed of KM1024iMHE is 47m/min at the same resolution, which is about twice that of other printheads, which can greatly improve production capacity.

Konica 1024i Printhead-Line Speed and Color Density

The maximum driving frequency of KM1024iMHE is 45kHz, which can fully keep up with the speed of traditional printing production lines. KM1024iLHE-30 is a printhead with a large ink volume, which can produce special effects printing.

Konica Minolta’s KM1024i printhead also has a grayscale printing function. The bottom of the above figure is the change of ink droplet size during grayscale printing. Grayscale printing can produce high-quality images. Users of printers equipped with Konica Minolta printheads can set the most suitable printing method according to the design pattern.

KM1024i Printhead-Wide-Range Applicability

The “KM1024i Series” print heads have two types of print heads: M-type (medium droplet) and L-type (large droplet) according to the droplet size. Both print heads have a drive speed that is three times faster than the previous three-cycle print heads. They also have the same high nozzle density of 360 dpi as the previous print heads. This is the drive speed and nozzle density that are essential for printers. In addition, both print heads support 8-level grayscale printing, which can produce delicate and rich image quality, and can also eject large amounts of ink.

For example, the M-type (medium droplet) print head KM1024iMHE can be used for printing that requires high-definition image quality. The KM1024iLHE-30 can be used for printing that emphasizes printing speed or printing on brick surfaces with highly uneven surface design. The printing speed varies depending on the ink. The KM1024iMHE can reach a maximum speed of 38m/min, and the KM1024iLHE-30 can reach a maximum speed of 68m/min.

In addition, both printheads can use the same drive system and the same printhead frame. So it is not only very convenient to replace the printheads, but it is also easy to use both printheads on the same printer. KM1024iMHE is used for spraying color ink, while KM1024iLHE-30 is used for grayscale printing that requires spraying more ink. These two printheads can be used on the same printer at the same time. When KM1024iLHE-30 is used for 8-level grayscale printing, it can spray a maximum of 210pl droplet

Konica 1024i Printhead-High productivity

The biggest feature of Konica Minolta’s KM1024i printhead is independent channel drive technology. Based on this independent channel drive technology, the drive speed of the print head will be 3 times faster than the previous three-cycle drive technology print head.

Konica 1024i Printhead-High productivity

The upper left picture is a schematic diagram of the print head observed from the nozzle surface in the previous three-cycle drive technology. Each nozzle ink chamber shares a chamber wall with the adjacent nozzle ink chamber. So two adjacent nozzle ink chambers cannot produce ejection at the same time. Therefore, the nozzles need to be separated into three groups for ejection. The lower left picture is an observation photo of the ink during ejection. As shown in the picture, in the three-cycle drive, each simultaneous ejection requires three nozzles.
The upper right picture is a schematic diagram of the independent channel drive technology. There is also an air chamber between each nozzle ink chamber. The nozzle ink chamber uses a non-shared wall structure, so each nozzle ink chamber can be driven continuously at the same time. This is the principle that the independent channel drive technology can produce 3 times high-speed drive. The lower right picture is an observation photo of the ink during ejection. As shown in the picture, with the independent channel drive technology, each nozzle can eject at the same time.


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