Print resolution is the level of detail a printer can place in text or images, usually described in dots per inch or by the fineness of the output pattern. Higher resolution makes edges sharper, small text more readable, and barcodes or QR codes more reliable. Lower resolution can blur characters, merge lines, or hide fine features.
In cyber security, print resolution matters because many workflows still rely on physical output for labels, receipts, audit records, and access materials. Attackers may exploit poor resolution to make text hard to read or to blur machine-readable codes, while defenders check that printers are calibrated and producing legible, scannable output. In thermal printers, motion control and timing can also affect effective resolution, so small mechanical changes may improve or degrade output without changing the hardware itself.