Most of my current work for PCMag is about printers and projectors, but I've covered a wide variety of other subjects—in more than 4,000 pieces, over more than 40 years—including both computer-related ...

Very low running costs. Great print quality. Small footprint. Decent volume rating. Non-duplexing print engine. Ink bottles not keyed to corresponding onboard tanks. Lacks automatic document feeder.

How much ink does an all-in-one printer need in order to fax a document? Or to scan one to your computer? The obvious answer is "none." But if you own certain printers from companies like HP and Canon ...