Dell ( DELL) shares showed signs of life Thursday, a day after company executives touted progress in the printer market, a relatively recent but significant product push for the world's largest computer company.

Dell has garnered strong sales momentum, but it continues to operate without profit. Dell executives are content to keep growing the business at or near break-even, as they count on subsequent sales of ink and toner to boost profit.

But the selling of ink and toner -- the printer consumables market -- is no less competitive and carries with it its own risks and hazards.

Dell is trying to bring its operational efficiencies to bear on markets beyond the PC, where its supply chain and direct-sales approach provides it with cost advantages over its competitors. Dell has expanded into TVs, digital-music players and data storage, but its most significant new frontier is in printers.

Dell entered the market just over two years ago, and it has quickly carved out a double-digit market share for itself, thanks to an aggressive pricing strategy that came at the expense of other long-time printer companies like Hewlett-Packard ( HPQ), Xerox ( XRX) and Seiko-Epson. (Another printing heavyweight, Lexmark ( LXK), is a Dell competitor, but Dell is also its largest customer).

Most players in the printing business bank on ink and toner to buoy performance, which would sag if it depended only on discounted sales of printers, so price sensitivity to these consumables is a major concern.

Dell offers initial deals on consumables when a printer is purchased, and also offers a real-time monitoring program that will alert the user when supplies are getting low and then directs them to Dell's Web site. The program is designed to get customers hooked early on the convenience of Dell's replenishment service, but it carries risks.

"A lot of manufacturers are reluctant to discount the way Dell does at the beginning because of a fear that the consumer might get used to the lower cost of consumables and then get sticker shock when they come back," says Ian Hamilton, senior printer industry analyst with Current Analysis.

Consumables are a key to success for Dell's printing business, accounting for just over 40% of its Dell-branded printer revenue in the second quarter. That number has been on the rise, with the company predicting consumables would eclipse 50% of overall sales -- which would be in line with the industry average -- by the middle or end of next year.

Analyst Cindy Shaw of Moors and Cabot says Dell won't be able to generate the same operating profits that H-P can because it has to split profits with its suppliers, like Lexmark, which hold the actual intellectual property behind the replacement parts. Further, she speculated that Dell's price-conscious customers may be more apt to get their ink and toner refills from non-Dell affiliated refillers or remanufacturers.

While optimistic that Dell has figured out the printer market, Shaw predicts Dell's printing operating profit will top out in the high-single digits while H-P aims for 13% to 15%. Moors and Cabot has no banking relationship with Dell.

Ro Parra, senior vice president of Dell's Americas business unit, says the printer division will begin "shifting its focus to high-value categories," thereby targeting the parts of the printing arena that garner the fattest profits, specifically citing color laser printers and printers that can perform multiple functions, like scan, copy and print.

These are particularly ripe markets in the corporate space, where fleets of printers are in near constant use.

Parra says Dell can succeed because it offers cost savings across a company's whole printing fleet, as well as across the lifetime of the printers. He cited growing number of sales for orders consisting of more than 100 printers as evidence of the company's success.

Parra hopes Dell's printing-share gains mirror its progress in the server market, which commands about 35% of the market a decade after entering it, and tracked an identical share grab over the course of its first three years. Dell shipped 5 million printers in the previous fiscal year and Parra said the company is on track to ship between 7 million and 8 million this fiscal year.

However, this is still considered the growth part of the printing business for Dell -- the second of a three-phase plan. The final phase, which Dell dubbed "extend," is designed to capitalize on the customer base through the sale of related products and services.

This could mean trouble for Dell's competitors as it indicates the company is content to operate its printing unit with little or no profit. Prices will be kept low in an effort to boost hardware sales, which eventually is expected to boost higher-margin ink and toner sales.

As third-party manufacturers become more savvy about marketing to Dell customers, however, Dell may be hard-pressed to reap the profits that it has sowed through its heavily discounted printer sales.

But this isn't just a Dell problem. Indeed, all printer companies face the same issue, in turn creating more price-driven competition for the entire industry. Seiko-Epson dropped its financial targets for the next six months on Wednesday due partly to reduced demand for inkjet consumables and rapidly falling prices for inkjet printers.

It's no secret that Dell's luster has dimmed a bit this year. It is struggling to prove that it can grow at the same profitable rates of its past, and its hope for future profits from ink and toner might be too optimistic, if competitive pressures mount here, as has happened in so many other areas of the technology landscape.

The ink in this well might be drying up.

More from Technology

Tesla's Elon Musk Just Told Short-Sellers They're Toast

Tesla's Elon Musk Just Told Short-Sellers They're Toast

Dropbox Soars in Third-Straight Record-Setting Session

Dropbox Soars in Third-Straight Record-Setting Session

Jim Cramer on the Markets: I Struggle With How Negative Things Are

Jim Cramer on the Markets: I Struggle With How Negative Things Are

Worth a Stunning $6.6 Trillion, Tech Stocks Have Taken Over the Market

Worth a Stunning $6.6 Trillion, Tech Stocks Have Taken Over the Market

Second-Quarter Earnings on Track for Massive Growth, So Relax Wall Street

Second-Quarter Earnings on Track for Massive Growth, So Relax Wall Street