Now here's a form of electronic convergence that really works: Rather than investing in separate machines for your home office - namely, a printer, scanner, copier and fax* -- one of the latest trends is buying a "multifunction" printer that handles all of these tasks. Sometimes these inkjet or laser-based printers are aptly referred to as "all-in-one" products. Companies may also incorporate this added functionality into the product name, such as the HP PSC 2210 - the "PSC" stands for print, scan and copy. Similarly, Lexmark often uses the acronym "AIO," for all-in-one, in their product lines. Here we discuss the pros and cons of these multifunction machines to help you decide which is right for you.