Other large standby drainers include ink jet printers, which can use from three to 20 watts, and mini-stereos, which can consume from one to 25 watts.

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While researchers worked to perfect the ink, E Ink started creating large programmable in-store billboards, which were blue and white.

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Friend's large molecules can be mixed into a solution and sprayed onto a screen, using the same technology as ink-jet printers.

FORBES: Magazine Article