The PlanOn PrintStik PS910 portable printer is remarkably small, considering that it can print full letter-size pages. It measures just 1 inch thick by 2 inches tall by and carries 11 inches long (the same length as a sheet of letter paper). PlanOn designed this 1.5-pound unit for printing on the road from a laptop, a smart phone, or a PDA. In its quest for portability, however, the PrintStik may sacrifice too much functionality to appeal to more than a few users.
The PrintStik uses heat to print on a roll of thermal paper. Though this design decision keeps the mechanism small and simple, the resulting monochrome-only prints look like output from an old-fashioned fax machine. Text is fuzzy and uneven; and even at the highest quality setting, images appear as pixelated patterns of dots. Moreover, the pages curl up the way thermal-printed credit-card receipts do, and tearing the sheet from the printer leaves a rough edge.
The paper comes in a cartridge that fits completely within the printer, but I found the cartridge awkward to install. Each cartridge contains enough paper to print 20 pages; a packet of three cartridges costs $25. PlanOn also sells economy packs of nine cartridges for $60, lowering a per-page cost to about 33 cents-still considerably more expensive than most laser printers and inkjets. Two upsides: The printer imposes no additional ink costs, and only the amount of paper you need scrolls out when you're printing a partial page, so you don't waste any.
Currently, the PrintStik works only with Windows computers and BlackBerry phones. PlanOn plans to announce drivers for additional phones and PDAs as they become available. The printer comes with a handy retractable USB cable, which also charges the built-in lithium-ion battery as an alternative to the included wall charger. I had no trouble printing over USB from my Windows laptop
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