If something does what it does really, really well, and doesn’t cost you and arm and a leg, you tend to forgive, or even forget its foibles. That’s what you have with Epson’s new Expression Premium XP-520 color inkjet multifunction, which offers copy/scan/print capabilities for $130. The output from its five-ink Claria system is so good, it’s easy to overlook its squinty little display and less-than-intuitive controls. And, get this: You can print a four-color page for 12.5 cents. Not as cheap as a business inkjet, but practically unheard-of cheap for a low-volume, low-cost multifunction.