CNBC is reporting that HP (HPQ) is merging its PC and Printer units. HP is struggling to find its place in the “Post PC Era”, where users are moving to tablets like Apple’s iPad (AAPL), and as a result they are printing less. PC and Printers are big business for HP, and its is getting hit big on both as a result of tablets. The merger of the divisions it expected to unleash a major layoff, the likes of which have not been seen in Silicon Valley since the dot com bust.