White ink circulation

White ink circulation prevents pigment sedimentation for special inks, such as white or silver, which could lead to a clogged ink supply, by periodically circulating the ink in the tubes and sub tank, to guarantee a stable supply while reducing ink discharge and waste.

The advantage of White Ink Circulation explained

White Ink Circulation applied

White Ink Circulation will constantly circulate the white ink between ink tanks and ink sub tanks, as well as through the print head, to prevent sedimentation. This reduces cleaning frequency, saving time and money.

White Ink Circulation not applied

The pigment of white inks have the tendency to settle, which could eventually lead to a clogged ink supply. Additional time and money is needed to do this manually.

Dot Adjustment System

DAS performs, by default, both the feed compensation and drop positioning adjustments automatically when placing new media. This helps prevent bi-directional colour banding and eliminates the need for manual adjustments per individual media type.

The advantage of DAS explained

Bi-directional adjustment

DAS automatically recalculates and adjusts the drop landing position, depending on distance between the print heads and the media surface, assuring the highest dot placement accuracy bi-directionally and resulting in the highest possible print quality.

Feed Compensation Adjustment

The automated media feed adjustment helps optimise the feeding of the media, eliminating manual feed correction which in turn prevents horizontal banding.

Mimaki Fine Diffusion

MFD reduces noise to produce smoother colours by an advanced dithering process, achieving the best possible image quality even at lower resolutions.

The advantage of MFD explained

MFD applied

MFD is an image processing technology available in the RIP software which converts the file image data into data the printer is able to print per colour, location and size of ink drops. This process known as ‘dithering’ creates smooth gradations while maintaining sharpness.

MFD not applied

MFD produces solid colours, like pre-defined Pantone colours, producing a much smoother output and less noise compared to standard diffusion methods, in which a banding effect will occur.

Variable Dot Technology

Variable dot technology for smoother gradations is a functionality of the print head that enables the creation of ink drops of different sizes onto the media, delivering smooth gradations and higher image quality. The larger drops are a combination of small drops jetted with different speeds; when reaching the media, they have merged into one larger drop.

The advantage of Variable Dot Technology explained

Variable dots

Depending on the print mode, 3 optimum drop sizes are automatically selected. The dot size variation, starting from 4pl, allows printing in not only high resolution for high quality, but also high speed and high density printing for high productivity!

Normal dots

By producing dots in three different sizes, smooth high resolution graphics are created without a grainy appearance, even at high speed and in low resolution mode, high quality printing is possible.

Waveform Control

WFC generates a signal that is applied to the piezo element of the print head, which controls the size and speed of the ink droplet. To achieve the best possible sharpness of the image, we want perfect round ink drops at the landing on the media; changing print settings or environmental conditions, such as print resolution, print speed, ink-type, temperature and humidity require the waveform to change in order to maintain the best image quality. Each time a print condition changes, WFC will choose the optimum waveform, achieving the highest image quality at any print speed.

The advantage of Waveform Control explained

Waveform Control applied

For the best possible image sharpness, ink droplets are jetted in near perfect circles. The high accuracy dot placement provides a sharp finish without the grainy appearance.

Waveform Control not applied

Without any Waveform Control, ink droplets are jetted in deformed circles. This causes the ink droplets to overlap, leading to a grainy appearance with a blurred edge.

Mimaki Advanced Pass System

MAPS4 reduces banding at the boundaries of the passes, by jetting ink drops according to a unique algorithm for each pass based on speed, ink colour and coverage, and thereby assuring the highest image quality at every print speed. Without correction, inkjet printers tend to create significant ink concentration differences at pass boundaries, visible as horizontal lines on the print (= banding). In addition, it allows the operator to manually change the MAPS effect at the printer to their personal ‘flavour’.

The advantage of Maps explained

MAPS applied

With every pass, Maps is using an unique algorithm calculating the most effective way of jetting the ink drops to avoid visible banding. This is constantly changing depending on ink colour, coverage and printing speed.

MAPS not applied

Without correction, every inkjet printer tends to create significant ink concentration differences at pass boundaries. Printing a pass with no anti-pass system will jet ink in a straight line, increasing the risk of banding. These appear as visual horizontal lines on the printed application.

Nozzle Recovery System

NRS automatically substitutes clogged nozzles with open nozzles, ensuring constant image quality and productivity while reducing valuable down-time.

The advantage of NRS explained

NRS applied

NRS enables uninterrupted print operation and productivity, without loss of quality.

NRS not applied

Without NRS, the user must manually stop the printing process each time a nozzle is clogged.

Nozzle Check Unit

NCU automatically checks and detects clogged nozzles, ensuring constant image quality and productivity while reducing valuable down-time.

The advantage of NCU explained

NCU applied

While jetting ink from each nozzle in successive order, an LED directs light through the ink spray on a detector, which is activated in the case of a missing or deflected nozzle. Based on the firing frequency and timing, the NCU calculates which nozzle is missing or deflecting. When detected, the NCU will start an auto-cleaning procedure to recover the missing nozzles.

NCU not applied

In normal operation, all nozzles of the print head are jetting ink drops in a straight line onto the media. But nozzles can get clogged due to dried ink on the print head surface. Partial clogging causes the ink drop to be jetted under an angle. While complete clogging prevents the ink drops from being jetted, resulting in visible lines on the printout.