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Guys, I would like to know if printheads for mp540 and mp550 are the same? I cannot get my mp550 work coz of a b200 error so I am thinking of fixing a second hand mp540 printhead into it. Do you think that would be possible?

Hi guys, I have a Canon MP550 and recently it's developed a problem of smudging the photos. What exactly happens is that when the print out comes out of the printer, I see very tiny horizontal green lines right at the end of photos (see the image). I don't know why they appear at the end. I did...

Printer: Canon MP550 Problem: PGI 520 black cartridge Hi guys I had a couple of problems when refilling the original black cartridge. As instructed in the German Durchstich method , I opened a small hole but using a tiny drill bit. I started injecting the ink into the ink container but when...

Can someone please tell me how the remaining ink in a cartridge is calculated by a printer? Is there any way that a printer knows that it has a cartridge with a bigger or smaller ink tank than the one used previously and therefore calculate the ink levels correctly? The reason why I am asking...

I'have gone through the posts but my problem is slighlty different than many of those "not recognised" errors. I am using refillable auto reset cartridges and place them into their slots, red light comes on. So, chips make a good contact, no problem with that. After they are installed, I can...