Brother rates the MFC- J6920DW at 22ppm for black print and 20ppm for colour. We didn’t see speeds that high. Our 5-page text test returned 7.8ppm and this increased to 11.4ppm on the 20-page test. This is a fair speed for an inkjet printer, but barely over half the rated figures. A 20-side duplex version of the document gave 5.6 sides per minute, which is reasonable.
The 5-page, A4, black text and colour graphics document gave 7.0ppm and the A3 equivalent gave 3.5ppm, exactly half the A4 figure. A single page A4 copy from the flatbed took 21s and an A3 copy took just 7s longer, at 28s. A 10-side, duplex A4 text document copied in a fair 2:04.
15 x 10cm photos took between 1:08 and 1:16, which is an impressive set of speeds and varied very little between sources. The print from a Samsung Galaxy Mini Android smartphone was very quick and the Brother app offers more useful control than many.
Print quality on plain paper is reasonable, slightly better than from Brother’s earlier inkjet engines. The fuzzier appearance of print from piezoelectric printers, like those from Brother and Epson, compared with thermal print from Canon and HP machines, may be down to the different ink compositions required by the two printing methods.
Photo prints show good natural colours and worthwhile levels of detail, though some is lost in darker areas of images. Colour on plain paper is bright and text over colour registration is good, though we did notice some banding in colour fills.
Using the highest capacity cartridges gives page costs of 1.7p for black pages and 5.7p for colour, including 0.7p for paper. These are similar to the best of the competition in the small business inkjet market and show again that inkjet print costs are often lower than those from similarly priced laser printers.
A3 all-in-ones are thin on the ground, with HP’s Officejet 7610 being that company’s only offering and the Epson Workforce WF-7525 being the only one from Epson.
The Epson machine has similar specifications and print speeds, including twin trays and duplex print, but is more expensive to run. HP’s A3 offering only has a single tray and no duplex scanner, so doesn’t really stack up. This makes the Brother MFC-J6920 the clear and obvious choice.
Brother’s MFC-J6920 is a good, modern inkjet all-in-one, with all the facilities you would expect in a proper A3 machine: full print, scan and copy, single and double-sided on the larger paper. More importantly, it's the best printer of its type, making it easy to recommend.