LAS VEGAS - Once celebrated for cameras that made their own prints, Polaroid Corp. plans to update the concept this year by selling a portable printer for images on cell phones and digital cameras.

And like those old Polaroid instant-film cameras, the new printers should have a wow factor: they require no ink, because they employ a thermal printing technology from startup Zink Imaging Inc.
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Another mobile printer with thermal paper debuted at CES, though it is much larger and designed for business people.

The $300 Printstik from Canada-based Planon Systems Solutions Inc. is less than 2 pounds but prints in black and white, in the familiar 8 1/2-by-11-inch paper dimension. After a connection via USB cord or Bluetooth wireless, the Printstik can churn out paper copies to ease the task for people who tire of reading text on the small screens on devices like BlackBerrys.