…an attendee approached me with a question I’ve been asked a hundred times before. “Are these water-based inks or pigment inks?” I gave my usual response, “Well, both—actually,” then launched into an explanation about ink formulation theory, the history of inkjet printing, and the correct application for ink types. He proceeded to tell me I was wrong because someone at a printer manufacturer’s booth had just told him the opposite.

This is a beginning of a great article titled “Debunking the Myths of Digital Inks” by Tony Martin for Digital Photo Techniques magazine. I recommend everyone who interested in printing technologies and every inkjet printer user reading this article.

To answer the question in the title, I’ll allow myself to quote Tony Martin once again:

“The difference between a dye and a pimgent is simple to explain. A dye is a colorant that is fully dissolved into the carrier fluid, and the resultant ink is a true solution (Figure 2a). Once dissolved into the carrier fluid, a well-made dye should never separate or settle out. One dye ink analogy is that it’s like diluting a fruit juice with water. Once stirred, it never separates again—no matter how long you leave it. A pigment is a very fine powder of solid colorant particles suspended or dispersed throughout the carrier fluid (Figure 2b). A crude analogy for a pigment ink is that it resembles sandy-colored water in a river or at sea. If you look closely, you can see the particles of sand dispersed throughout the water.”

How exactly this difference affect image quality and work of inkjet printer in general you will learn from the acrticle.

Also, from “Debunking the Myths of Digital Inks” (PDF format, 135 Kb) will tell you:

• what the Golden Rule of inkjet printing is and how it helps with printer clogging
• why 100-years expected image life does not really matter
• whether use of third-party inks is going to void your printer’s warranty
• when you should use bulk ink feeders

The grim economic picture darkened further today with news that the price of ink for printer cartridges has reached an all time high of $1000 a barrel on the New York futures exchange. The world’s most traded commodity has seen a steady rise in price over recent months due to supply problems, increased demand from China and a failure of consumers to send their empty cartridges to the charity recycling centre and just leaving them in their desk drawer instead.
(more…)

New cost-of-ink-per-page analysis of ink cartridges is a new way for customers to estimate their printing costs.

QualityLogic, a company providing quality assurance and control services, reported it had completed Cost-of-Ink-Per-Page (CoIPP) Analysis for the Eastman Kodak Company.

CoIPP Analysis uses cartridge cost and page-yield to calculate and compare the cost of ink required to print one page on Kodak EASYSHARE 5100, 5300 and 5500 All-in-One Printers to 11 competing printers.

Page-yield is determined by Certified Page-Yield Test Program, QualityLogic’s special software based on ISO standards determines. Cartridge prices in UK, France, and Germany were provided by IDC, a provider of independent market intelligence.

QualityLogic published a paper that you can view for details, but here is a briefly overview of what results of the analysis show.

Naturally, all three Kodak’s printers demonstrate lowest cost of ink per page in monochrome, color and photo printing. For instance in UK, one page printed on any of Kodak Easyshare printers in mono, color and photo mode costs 0.016, 0.047 and 0.064 GBP, or $0.033, $0.096 and 0.131 respectively.

It turns out the most expensive printer inks among the compared are for Hewlett-Packard’s Photosmart C5280 followed by Photosmart C4280. A page printed Photosmart C5280 in monochrome mode would cost 0.065 GBP; in color mode – 0.148 GBP; in photo mode – 0.311 GBP. Converted into US dollars, that’d make $0.137, $0.302 and $0.636, respectively.

Of course, actual prices in USA will vary, but the example gives us a general idea of cost difference scale.

Not so long ago a study initiated by HP found that HP ink cartridges contain inks twice as much as remanufactured and refilled ones. Some time before that, an ink study sponsored by Epson found that Epson genuine inks provide stronger color-fading resistance and, thus, longer life of printed images.

Just like these studies, the QualityLogic’s analysis is not completely independent and unbiased. However, such CoIPP analysis provides consumers with information that is fair, accurate and consistent. It gives them a new way to look at this portion of the overall cost of owning and operating a printer.

Recent study show customers have no basis for comparison when buying printers, which results in $6 billion overpay on ink every year.

The American Consumer Institute released a new white paper entitled “Inkjet Prices, Printing Costs and Consumer Welfare” disclosing pricing strategies adopted within the inkjet industry. This is the first document made by public organization (we don’t consider numerous articles on the topic in magazines and sites by independent authors).

Inkjet printers are usually under-priced or even sell in the red to make them more appealing for purchase. However, the manufacturers make up the profit on overpriced ink, and consumers are left with no choice and spend hundreds of extra dollars to operate the printers. The printer ink is currently one of the most expensive liquids in the world. The price of it can be compared with that of the world’s finest champagne, gasoline and most luxury fragrances.

Currently, there’s no standardized printer ink unit pricing, such as cents per printed page. In this situation, customers at the shop have no information about real printing costs. They buy cartridges without knowing how much ink is in them or how many pages one cartridge will print. The lowest price cannot serve as the rule of thumb, because very often the lowest priced cartridges have much less ink.

The paper also suggests that adoption of a form of truth-in-labeling would allow customers to compare each printer’s cost-of-ink per printed page. The paper concludes that competition in the inkjet printer and ink sectors would be much more intense if consumers were made aware of the cost implications of their printer choices. Better information means lower costs for consumers.

I believe this is a good start. If more public organizations begin informing consumers on the issues and thus affecting the manufacturers, the situation with overpriced printer ink may really change for the better.