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    PIXMA MP780 - Colors print very light after replacing ink cartridges

    I bought some more ink cartridges yesterday and put them in. Everything seems to be working just fine. Thanks for your help. Never occurred to me that a product Canon markets for my printer wouldn't actually work in my printer. Doesn't make sense that Canon would do that. But they did...
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    PIXMA MP780 - Colors print very light after replacing ink cartridges

    To answer your questions: 1. Yes, in the past I have used other brands of ink. I honestly can't remember what the brands were. I never refilled any of the cartridges, I bought off-brand cartridges already filled. I have used only Canon OEM cartridges for the last 1-2 years because work is...
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    PIXMA MP780 - Colors print very light after replacing ink cartridges

    OK, its taken me a little while to get back to this. We had a fun weekend, what else can I say? Anyway. I ran the nozzle and extended nozzle checks again. The 6bk is working again. The 6M doesn't show up on the regular nozzle check. I couldn't get it to show up on the scan, but it is...
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    PIXMA MP780 - Colors print very light after replacing ink cartridges

    I've seen in the past you have suggested to people to post their nozzle check. I'm posting that along with the Super Nozzle check I saw you mention somewhere. Here are some notes: * the colors did not scan all that well because they are so light. On the first nozzle check, all the colors...
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    PIXMA MP780 - Colors print very light after replacing ink cartridges

    OK, here is the update on the purge system. I filled the pad with windex and the windex stayed around without draining outor drying up in any way. I this point pushed down the little switch on the right that indicates the top is closed. the carriage moved to the right and park itself. No...
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    PIXMA MP780 - Colors print very light after replacing ink cartridges

    OK, I finished the 'windex-on-the-pad" trick to check the purge system. I cam back with mixed results. The first time (after my last entry) I tried, it looked clearly like all the liquid was still left on the pad. The second try, it seemed that all the liquid was gone. So I guess it might...
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    PIXMA MP780 - Colors print very light after replacing ink cartridges

    I'm following the instructions on the link you sent for seeing if the purge system is working. I'm having trouble simply getting the windex to stay on top of the pad. It seems to soak in to the pad as fast as I can put it on there. But I'll keep trying and get back with the results. But I...
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    PIXMA MP780 - Colors print very light after replacing ink cartridges

    Thanks for the suggestion and the link. I'll look into it and post my results.
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    PIXMA MP780 - Colors print very light after replacing ink cartridges

    I have a Canon PIXMA MP780 which I have owned since new (~4-5 years). The last 3 times I have replaced the color ink cartridges, all the colors immediately go from printing perfect to printing very lightly. Whereas the Black 3eBK cartridge prints perfectly after replacing it. Like I said...
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