Ink is the cost line buyers ask about first and model worst. A price per litre says nothing about the cost of a job, because the same litre covers a very different number of square metres depending on what is being printed. What can be modelled is the cost per square metre, and within a published range that is what this article works from.

The immediate boundary: per-litre ink pricing is not published for this range, so this guide does not quote one. What is published is an ink cost per square metre for a full-colour print, plus the machine features that influence consumption and the offer of an exact calculation from your own file. Those are enough to build a defensible cost line.

Why is ink cost quoted per square metre rather than per litre?

Because only one of those numbers prices a job.

The useful figure is how much ink a square metre of your specific artwork consumes, which depends on coverage, resolution, ink layers and waste rather than on the purchase price of a container.

A per-litre price becomes usable only after it is combined with a consumption figure, and consumption is the variable part. A light graphic on a smooth board and a heavily inked image with a full white underbase and a varnish layer can differ by a large multiple on the same machine in the same week. Buyers who compare suppliers on ink price alone are comparing the smaller half of the equation.

The per-square-metre figure has a second advantage: it can be compared directly against a selling price. If a shop knows its ink cost per square metre and its sale price per square metre, it has the first line of a margin calculation without needing to know how many litres are in the machine.

What drives ink consumption on a UV flatbed?

Four variables, and only one of them is the artwork.

Colour saturation, print resolution, the number of ink layers including white and varnish, and the volume lost to purging and maintenance together determine what a job consumes.

Saturation is the obvious one: a photographic image with deep shadows lays down far more ink per square metre than a line drawing. Resolution is the second, because a higher-resolution mode uses more passes and therefore more ink to cover the same area. The third is layering: white underbase and varnish are additional layers, and white in particular is usually printed as a solid field rather than as an image, so it consumes ink without adding visible colour in the printed area.

The fourth is the one buyers never see in a quotation. Ink is consumed when the machine cleans, caps and wipes the heads, and when it purges between jobs. That is why the ink delivery architecture matters as much as the artwork: dual negative pressure for both colour and white is published to reduce ink purge on the AJ3220G/R, and the AJ3220EX is published with an 8-level grayscale head configuration that saves up to 30 percent on ink.

How much does a full-colour print cost in ink?

Published at roughly $0.80 to $1.20 per square metre.

Andresjet publishes that range, equivalent to about $0.07 to $0.11 per square foot, for a full-colour print, with the note that the figure varies with colour saturation and print resolution.

Two things are worth understanding about a published range like this. It is a planning figure rather than a quotation, and it describes the printing element only. It does not include the substrate, the preparation, the labour, the fixture or the waste, all of which belong in a job costing but none of which are ink.

The range is also the basis for a useful conversation with a customer. A buyer who expects to print heavy photographic panels across a full bed should be told early that their artwork sits near the top of the range, and a buyer printing light graphics on a small nested layout should be told that theirs sits near the bottom. Setting that expectation before the order prevents a dispute about ink cost after the first invoice.

How does white ink change the calculation?

It adds a layer rather than replacing colour.

White is normally printed as a solid or selective underbase in addition to the colour channels, so it adds ink, passes and registration requirements to the same square metre.

White is the layer that makes colour readable on transparent, dark and reflective substrates, which is why it appears on so much packaging, signage and drinkware work. It is also the layer that most often breaks a buyer's ink assumption, because it is not an image but a field. A design that covers thirty percent of a panel in colour may still require a full white base beneath it, and the ink cost follows the base rather than the visible graphic.

Machine configuration determines how much white capacity is available and how it is delivered. The published configurations differ across this range: the AJ2130G/R is specified with an extended eight-colour system including white and varnish, the AJ3220EX with an extended seven-colour system including white and varnish, the AJ2513G/R with CMYK plus white and optional light inks and varnish, and the AJ3220G/R with CMYK plus white and varnish expandable to eight colours. On the cylinder route, the AJ360i is published with a white ink base system using four white channels for dark objects.

How do resolution and pass mode affect consumption?

Higher resolution means more passes and more ink.

A mode chosen for fine detail lays down more ink per square metre than a draft mode, which is why the same artwork can sit at different points in the published cost range.

This is the variable a shop controls most directly. The published production figures for this range show how wide the mode spread is within a single machine: the AJ2513G/R is specified at 27.46 m²/h in draft, 17.71 m²/h in standard production and 13.02 m²/h in high-quality mode, and the AJ3220EX at 154.3, 111.5 and 89.6 m²/h across the same three modes. Running slower means more passes over the same area, and more passes means more ink.

The commercial decision is therefore per product, not per shop. A sign intended to be read from ten metres does not need the mode used for a close-viewed art panel, and choosing the mode deliberately is one of the few levers that changes ink cost without changing the substrate or the design. Where a customer specifies a quality level, the mode should be agreed in writing rather than left to the operator.

What machine features reduce ink waste?

Delivery design and maintenance discipline together.

Dual negative pressure is published to reduce ink purge, grayscale configuration to save up to 30 percent on ink, and capping hardware protects the heads that warranty excludes.

Waste has two sources. The first is purge and cleaning: ink pushed through the heads to keep them healthy, which is unavoidable but reducible. The published AJ3220G/R specification states that dual negative pressure for both colour and white reduces ink purge, and the AJ2130EX is published with a redesigned capping and wiping system, both of which act on this source. The second source is failure: a nozzle that will not recover, a head that has to be replaced, or a substrate rejected after printing. That source is controlled by maintenance routine rather than by hardware.

Printheads sit outside the published warranty cover, along with ink, ink tubes and filters, which puts the economics of waste directly on the operator. Daily capping, controlled wiping and prompt waste handling are not hygiene measures; they are the actions that determine how much ink is consumed per square metre across a year. The slide-out waste ink collector published on the AJ2513G/R is a small example of the same principle: a collector that is easy to empty gets emptied on schedule.

How do you get an exact figure for your own artwork?

Ask for the file to be run through the RIP.

The published offer is that a test print of your file through the software will calculate the exact ink consumption and cost for that job.

That is the only figure worth putting in a contract, because it is measured on the real artwork rather than estimated from a category. To make the exercise useful, send the production file at the resolution you intend to print, state the ink configuration including any white or varnish layers, state the mode, and say which substrate it will run on. Those four inputs are what the calculation depends on.

It is worth repeating the calculation when the artwork changes substantially. A design revision that adds a heavy background or a full white underbase can move a job from one end of the published range to the other, and a quotation built on the earlier file will no longer hold. Keeping the calculation together with the approved file makes the ink line auditable.

How should ink cost enter a quotation?

As one line of several, applied per square metre.

Ink is a direct cost, but it sits alongside substrate, labour, preparation, waste allowance and overhead, and a quotation that isolates it without the others misleads in both directions.

The way to make it useful is to build the quotation the way production runs: ink per square metre from the measured figure, substrate per sheet from the purchase price, labour from a timed workflow, and a waste allowance based on the shop's own rejection rate. Printed colour quality then depends on the profiles maintained for each substrate, which is a quality cost rather than an ink cost (International Color Consortium).

Two external checks are worth adding where the job demands them. Durability claims on the printed surface should be supported by a tape test under ASTM D3359 and an abrasion test under ASTM D4060, run on the actual substrate (ASTM D3359, ASTM D4060). And the ink system itself is a specification matter in regulated markets, where the composition of printing inks falls under national and regional chemical rules; process control practice for industrial print environments is covered by certification and research bodies in the field (Fogra). The wider trade guidance on process and cost comparison is a useful companion when ink cost is one of several differences between routes (PRINTING United Alliance).

Which platform configurations affect ink economics?

Channel configuration and head architecture.

The published routes differ in how many channels are available and how ink is delivered, both of which change consumption for the same artwork.

What the decision comes down to

Ink cost is a per-square-metre question with four inputs: how much of the area is covered, at what resolution, with how many layers, and with how much lost to purge and maintenance. The published range of approximately $0.80 to $1.20 per square metre for a full-colour print is a planning figure; the figure that belongs in a quotation is the one measured from your own file through the RIP.

Two habits make the line reliable. Agree the print mode per product rather than per shop, because mode changes consumption without changing anything else. And treat printhead care as a cost measure, since the heads are excluded from the published warranty and their condition governs how much ink a machine consumes across a year. Configuration detail for this range is published in the wide format UV flatbed collection, with the AJ2130EX described on its own product page and support terms on the support page.