Printer Test: Canon Pixma MP640

The MP640 is a high-end printer, in that it combines a colour screen (albeit without touch-sensitive controls), WiFi, double-sided printing and five separate cartridges: as well as the usual cyan, magenta and yellow, there are two types of black ink, one for photos and the other for documents.  Using separate cartridges for each colour ink can represent a saving of between 20% and 25% compared to entry-level models with just one cartridge.

This printer has got amateur photographers filmy in its sights, with ink droplets of just 1 picolitre, the smallest possible size and invisible to the naked eye in your photo prints.  The built-in scanner has a higher resolution than normal at 2400 dpi.

> Test: Canon Pixma MP640

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