Canon rates the PIXMA MX715 at a healthy 12.5ppm for black print and 9.3ppm for colour. While we got somewhere close to this - 10.2ppm - when printing our longer, 20-page document, more normal five-page documents are likely to give between 8ppm and 9ppm. We measured little difference in speed between normal and speed priority print modes.
Printing our five-page black text and colour graphics test gave a speed much slower than the rated 9.3ppm, and we didn't see more than 3.3ppm. Printing duplex also slowed the machine radically, so that our 20-side document took 5:46, a speed of just 3.5 sides per minute.
Copies weren’t particularly quick, either, with a single colour page from the flatbed taking 39s and a five-page black text copy from the ADF coming in at 1:02. Photo prints, however, were much faster. 15 x 10cm prints from a PC, an SD card or a PictBridge camera were all in the range of 32s to 35s while direct print from a Samsung Galaxy Mini Android smartphone took 40s.
Print quality of black text suffered from what appeared like a shadow to the characters, which meant they weren't as sharp as we usually see from Canon printers. This happened on several different printouts and wasn't always on the same side of the characters.
Colour graphics reproduced well, giving bright, eye-catching colours and the colour copy was close to indistinguishable from the plain paper original. Photos were as good as anything we've seen from a Canon, already pretty much the top of its class.
There's only one capacity of cartridge available for this machine and buying them from the least expensive source we could find gives an ISO cost per black page of 3.5p, with 9.9p for ISO colour. We've seen other machines in this class better both these page costs, though they still beat most figures for budget colour lasers.
The Canon PIXMA MX715 is a very good all-round all-in-one printer, which can turn its heads to both home office and photo prints. It's reasonably quick, has the added advantage of a duplex scanner, and can handle mobile prints from a number of sources. Plain paper print quality isn't quite as impressive as we've seen from other Canons, but this could have been a problem with our particular sample.