ENERGY STAR® is the government-backed symbol for energy efficiency, providing simple, credible, and unbiased information that consumers and businesses rely on to make well-informed decisions. ENERGY STAR is the simple choice for energy efficiency, making it easy for consumers and businesses to purchase products that save them money and protect the environment. ENERGY STAR Canon imageCLASS MF4270, Laser, 1200 x 600 DPI, Mono copying, Mono scanning, Mono faxing Canon imageCLASS MF4270. Print technology: Laser, Maximum resolution: 1200 x 600 DPI. Copying: Mono copying, Maximum copy resolution: 600 x 600 DPI. Scanning: Mono scanning. Faxing: Mono faxing https://www.trustedreviews.com/reviews/canon-i-sensys-mf4270-mono-laser-mfp The multi-function form factor continues to spread out from its inkjet homelands into the laser printer market. Canon's i-SENSYS MF4270 is based on a duplex, mono laser printer engine and a Contact Image Sensor (CIS) colour scanner with Auto Document Feed... https://www.pcmag.com/review/226517/canon-imageclass-mf4270 As a rule of thumb, when you see an all-in-one (AIO) with a network connector, you can assume its meant primarily for sharing. There are exceptions, however. The Canon imageClass MF4270 ($299 list) is a case in point. It offers essentially the same ... Fast print speed. Duplex (two-sided) printing. Standalone copying and faxing. 35-page automatic document feeder. Cant scan over network. Text is a touch below par for a laser. The Canon imageClass MF4270 can print and fax over a network and offers standalone copying and faxing, but it scans only over a USB connection.... https://www.cnet.com/reviews/canon-imageclass-mf4270-multifunction-printer-b-w-review/ If your office printing, scan, and fax needs run to the basic, the Canon ImageClass MF4270 is a good fit, with brisk task speeds and consistent output quality. Inexpensive; network-ready; includes ADF and duplexer; can receive faxes in secure memory; consistently good print/scan quality and fast scan and copy speeds. Scan and fax features are a bit limited. If your office printing, scan, and fax needs run to the basic, the Canon ImageClass MF4270 is a good fit, with brisk task speeds and consistent output quality.