Lexmark, the office-printer subsidiary of Chinese-owned Ninestar, is launching an internet of things division that will help U.S. and European manufacturers produce devices that can be monitored remotely over the internet. Vishal Gupta, Lexmark’s chief information and technology officer, said the company will use the technology and experience developed operating a remote printer network to create a consulting division called the Optra IoT platform, launching Wednesday. Lexmark already operates what is essentially its own internet…