That lead was built by the more than 4, 500 DocuColor 2000 series printers installed to date, compared with probably fewer than a couple of hundred or so NexPress systems.

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Lexmark said it will continue to provide service, support and supplies for its installed base of inkjet printers.

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Currently, around 30, 000 professional 3D printers are installed around the world, while around 10 million people actively use 3D CAD software.

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In most offices, where there's often a local area network installed for sharing files and printers, sneakernets disappeared years ago.

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