Canon rates the PIXMA MG3150 slightly faster than its sibling, at 9.2ppm black and 5.2ppm colour (the PIXMA MG2150 is specced at 8.4ppm and 4.8ppm). Under test, we did see slight increases, with our five-page black text print returning 7.1ppm, rising to 7.5ppm on the 20-page test.
The five-page colour test gave just 1.8ppm, though, with the print pausing for up to 12 seconds, half-way through each page. This is what the PIXMA MG2150 did, too, so it’s not an isolated problem.
The PIXMA MG3150 offers duplex print, but we can’t see many people using it, because of the speed at which it crawls. Our 20-page document, printed as 10 duplex pages, took 10:27, or 0.96ppm.
Other times were more reasonable, though still not quick, with a colour copy taking 45s and a 15 x 10cm photo on A4 coming through in 54s.
The quality of prints on both plain and photo paper is above average. Black text is clear and largely free of fuzziness caused by ink run. Draft text is also good, the main difference being a lighter print, rather than offering the dotty, unpleasant fonts of some rivals.
Colour graphics are smooth and reasonably bright, with good registration of black text over colour fills. Colour copies are less vivid than originals, but maintain most of their clarity. Our sample photo print was not that good, though, with overemphasis of primary colours and considerable loss of detail in darker shades.
The two ink cartridges, are available in standard and high-yield versions and using the higher capacity consumables should give you ISO page costs of 3.9p for black and 8.5p for colour. These are both reasonable for the class of printer and maintenance is very simple, just clipping in a couple of cartridges every few months.
There are a lot of good things in this sub-£50 all-in-one, such as its wireless support and mobile access. Overall however, the PIXMA MG3150 is let down by the annoying pauses during colour print and the sloth-on-beta-blockers speed of its duplex provision. The single LED display is very awkward, too. Canon really needs to get the basics right, before adding new features.