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Canon
Printing black--Pixma iP4700
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[QUOTE="Beathoven, post: 198601, member: 2984"] [b]Why you need color cartridges in place.[/b] Sure seems like you should be able to print with only black cartridges in place, right? Unfortunately that's not the way it works. Even if you print only black (I print only black & blue) you'll find yourself replacing color cartridges that you never use. Offhand we might be tempted to blame the ink waste on corporate greed but in fact the major reason for this is that ink needs to flow through the heads regularly to keep them from clogging. This is done by spitting a small amount of ink into the waste tanks every so often - like the first time you print for the day. This is the same process as 'head cleaning' but doesn't waste as much ink as going through the formal process. It's important to the manufacturer to make sure that this process happens so they don't end up with bad ratings from print problems due to clogged heads. (Epson did some years back and they had great printers!) The manufacturer shouldn't have to take a hit just because users only print color once a month so they've learned to protect themselves. My problem with Canon is that I think they tend to overclean and I really wish the user had some control over the process! I go through a lot of red and yellow ink cartridges and never even use the colors. So your question was, Is there a way to defeat this? If you really [B][I]never[/I][/B] want to print color you can physically clog your color heads so they don't spit ink when cleaned. Crazy glue or silicon or possibly even clay would do the job. You will still need to keep cartridges in place that register ink or have been reset but at least you won't be buying color cartridges when you don't print color. Incidentally if you own an inkjet a cartridge chip resetter is a worthwhile investment. I got one that's easy to use and works perfectly (along with some chipped cartridges) on ebay from a company in Hong Kong called shopeasy24.com. The savings is worth the short wait but getting stuff from half way around the world is quicker than one might think anyway. [/QUOTE]
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Printing black--Pixma iP4700
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