I think honestly I will never bother buying a inkjet printer again. I only keep using them because I have got a lot of ink yet I filled up the ink tanks with a bit of stuff which should help to unclog the heads. But it never seems to go perfectly well.
After all that messing about there was black streaks appearing on the printout. long story short, at some point I noticed the head cleaning sponge had disintegrated. so I replaced it with some "generic" sponge to do the job. only I now realise when the head wipes on sponge, it does not actually soak the ink away! there is a tiny hole with a bit of sponging which is supposed to connect it to a larger sponge inside the printer bought this idea is completely ineffective!
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I tried cutting a sponge like below to act as a cleaning pad and also poke down the hole to the bigger sponges. While this idea physically worked, the sponge was not soaking away the ink fast enough. so basically it was ineffective as well
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In the end I just left the sponge out and printing seems fine now. In all the years I have been buying inkjet printers , I could have probably bought a expensive colour laser by now
The only printer I had which was any good was the Canon PIXMA IP4500. The only problem with that was when you let the cartridges run dry it used to burn out the printhead 
As with most things, it is cheaper to buy a new printer than a new printhead 
This one looks it can do the 1meg ones etc. 