As part of a growing trend to produce energy-efficient products, HP announced today a bunch of changes in its line of printers, including a color laser jet printer that it says uses up to 65% less energy than other similar printers.

FORBES: HP Takes A Green Step With Energy Efficient Printers

Next year, expanding its judo offensive, Xerox plans to introduce a full line of fax machines, ink jet printers and laser printers.

FORBES: Judo attack

In March 2012 Adam Gardenhire aimed a green laser pen at a business jet and then shone it at a Pasadena police helicopter sent to find the source.

BBC: Man gets 30 months in prison for shining laser at plane

Under the David Packard approach, new product lines split off into autonomous units, and scores of disparate operations populated the four main businesses--ink-jet printers, laser printers, servers and PCs.

FORBES: All Carly, all the time