Epson EcoTank L15150 all-in-one printer A3+, colour, fax, Wi-Fi

A3+ is slightly larger than A3, so the printer takes a full-size A3 sheet with room to spare at the edges. That lets the office produce wide spreadsheets, drawings, floor plans, presentation posters and charts in-house that will not fit on A4. Two-sided printing saves paper, makes long documents thinner and means nobody has to flip pages by hand.

The speed figures follow ISO/IEC 24734, which uses real office documents rather than a blank page with a couple of lines. Mono pages come out at 25 per minute and colour at 12, so text documents are done quickly and colour presentations at a steadier pace. In an office where most of the output is black text, people rarely end up waiting at the printer.

EcoTank printers use built-in ink tanks refilled from bottles instead of swappable cartridges. The L15150 prints with four colours: black, yellow, magenta and cyan. With consumables needing attention less often, a long job is not cut short because one cartridge ran dry, and the printer suits a place where printing happens every day and in volume.

Ethernet puts the printer on the office network, and laptops can print to it over Wi-Fi without a cable. Wi-Fi Direct lets a phone or tablet connect straight to the printer even when there is no router nearby. USB handles a direct link to a single computer, and the USB host port lets you plug an external USB device, such as a flash drive, into the printer.

The colour scanner, at up to 2400 × 1200 dpi, makes digital copies of documents and images, and colour copies can be made without a computer. Fax is there for anyone whose partners or authorities still rely on it. Menus are handled from the touchscreen. The printer weighs 20.7 kg, so plan for a sturdy desk or stand.

Architecture, construction and engineering offices that print A3 drawings and plans; marketing and design teams that need large colour prints on site; and offices where one device has to cover printing, scanning, copying and fax while serving several people over the network.