Results from the speed tests are interesting. As we noted with the Prevail Pro – the previous all-in-one from this range we’ve tested – speeds are reasonable, without being spectacular. The five-page text print from the Platinum Pro returned a speed of 4.05ppm and this increased to 6.38ppm on the 20-page test. The five-page text and graphics page printed at 2.94ppm.
Since they all use the same print engine, you would think the test results from this machine would be nearly identical to those from the other machines in the Home and Pro series. In fact, although the differences between the Platinum Pro and the Prevail Pro are small, some are significant.
Duplex print for example, was noticeably quicker on this machine, with the 20-side, 10-page document printing in 5:12, where it took 5:32 on the Prevail Pro. However, a single page, colour copy from the flatbed took 47s on this machine, but just 32s on the cheaper model. A five page mono copy from the ADF also finished in the Prevail Pro’s favour, taking 1:17, while it took 10s longer on the Platinum Pro.
As far as print quality goes, the new Vizix engine offers improvements on both plain and photo paper, compared with the previous generation of Lexmark inkjets. Black text is generally clean, though there’s a little feathering of text into the paper nap, which can produce a slightly fuzzy look.
Colours for business graphics are bright and very smooth and colour copies are unusually close to originals in colour. Photo prints are much closer to the best Canon, Epson and HP can offer, where they used to trail considerably. Overall, the print quality is more than adequate.
As a member of the Professional range of all-in-ones, the Platinum Pro905 can use the 105XL black cartridge. This is, to all intents and purposes, the same as the 100XL cartridge, but is available for under £4. We found one for £3.12 inc VAT and, with a page yield of 510 pages, this gives a cost per ISO black page of 1.42p. The colour cost works out at 7.13p, both including 0.7p for paper.
The black cost in particular is very good for an inkjet and is down to the cost of several laser printers in the £300-£400 bracket. The 105XL cartridge is rigged not to work in the Home series of all-in-ones, so the low costs are only available to those buying the more expensive Professional series machines.
Whichever way you look at it, £370 is a lot to pay for an inkjet all-in-one. While the Platinum Pro905 is a capable machine, with useful extras like duplex print and copy, wireless connection, dual trays, fax and the touchscreen control panel, you can get something like the Canon PIXMA MX860 with all these features bar the touchscreen, for around half the price. If print and copy are your main requirements, you can get equivalent speed and quality from cheaper Lexmark all-in-ones, too.