What Does That
Spec Actually Mean?
Confused by DPI, ADF, duplex, or EcoTank? Tap any printer specification and get a plain-English explanation — plus whether you actually need it.
Tap any term on the left
Select a printer specification to see its plain-English explanation, whether you need it, and what value to look for.
Educational guide only. Specifications vary by model and may change. Not affiliated with HP, Canon, Epson, or Brother.
Printer Specs Explained — Plain English Guide
Printer specifications are written for engineers — not for people who just want to print their holiday photos and the occasional letter. DPI (Dots Per Inch) sounds complicated, but the practical answer is simple: 600 DPI is perfect for documents, and 1200+ DPI gives you better photos. Most people don't need to think about it beyond that.
ADF (Automatic Document Feeder) is one of the most underrated features on a printer. If you ever need to scan a multi-page document — a contract, a medical form, or a set of statements — an ADF loads all the pages automatically. Without it, you scan one page at a time by opening the lid.
Duplex printing (two-sided printing) is increasingly standard on mid-range printers and genuinely useful for reducing paper use. Automatic duplex does the flipping for you — manual duplex (less useful) requires you to reload the paper.
AirPrint is Apple's built-in wireless printing protocol — if your printer supports it, your iPhone can find and use it automatically with no setup. It's the single most useful connectivity feature for iPhone users. All specifications in this guide are for educational purposes only.