Agentless Backup is Not a Myth

There are two types of ink used in inkjet machines: pigment and dye. For many years dye-based inks were seen as the choice for bright colours while pigments were favoured for a more robust result, with improved resistance to water and ozone fade.

Improvements in the manufacture of micro-milled pigments mean that the range of colours available has improved, but so has the longevity of modern dyes, so the differences between the two are not nearly as clear-cut as they once were. Among the machines gathered here, those from Epson and Kodak use pigments, while the Canon, HP and Lexmark printers use dyes. Brother uses pigmented black and dye-based colours.

If fade-resistance is particularly important to you, check independent fade tests, such as those produced by Henry Wilhelm, where you can note an ozone fade-resistance of under seven months for Lexmark’s Vizix inks on the company’s photo paper, and at the other end of the scale, a fade resistance of over 100 years to ozone and over 300 years to light from Kodak inks, when prints are framed behind glass.

A constant complaint of inkjet purchasers is the cost of inks. It’s still true that many machines are sold at near cost price, with the return for the manufacturer coming from the consumables, but there have been some moves to reduce overall running costs. Kodak is campaigning heavily on the low cost of its cartridges, which it achieves in part by charging more for its printers.

From my calculations in this group, typical costs for an ISO-standard colour page vary between 5.5p and 13.5p. Bear in mind that the ISO test pages have colour coverage of around 20 per cent. If you print a lot of photos on your machine, the colour coverage will be much higher and you’ll get far fewer pages than the published figures suggest.

For example, the area of a 150 x 100mm photo is 1500mm², just under 25 per cent of an A4 page. If you’re printing something like house particulars, with photos, you could easily be producing pages with 50-60 per cent coverage and get just a third of the published ISO page yields. ®

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