Production inkjet presses designed for commercial printing (books, direct mail, transactional documents) are generally classified as printing machinery rather than computer peripherals, because their principal function is industrial printing rather than data output from a computer. The key factors are throughput capacity, substrate handling, and whether the device is marketed and used as a standalone production press. Desktop or office inkjet printers follow a different classification path.

Wide-format inkjet systems used for banner, poster, and display printing are typically classified as printing machinery NES when they are purpose-built industrial devices rather than general-purpose computer output devices. The distinction from office-grade wide-format printers rests on factors such as media handling range, ink system capacity, and intended commercial use. Importers should review the specific machine's technical specifications against CBP classification guidance or seek a binding ruling for high-value equipment.