DeskJet 660Cse Print Quality

I am disappointed with the print quality I am getting from my DeskJet 660Cse.  I am looking for bith explanations and suggestions.

I've already studied the user's guide, the troubleshooting guide, and online help.  I have also done quite a bit of testing with various settings.  

So far, I have found that I can get reasonable quality by minimizing the amount if ink used, by setting the print quality to "EconoFast" and paper to "HP Premium InkJet Paper."

However, to get good color printing, I have to set the print quality to "Normal" or "Best," which leads to smudged black on portions of the page using just black ink.  

A number of people have suggested that the ink can smear if the printouts are handled too quickly out of the printer.  My problems are occurring as the paper comes out of the printer.

Thoughts?
LVL 1
DanimalAsked:
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datnCommented:
How old is your printer and cartridge?
The reason that I ask is that you are most likely facing a hardware problem either in the printer itself and/or the cartridge.
A very likely cause of your troubles is a phenomenon called kogation.
Kogation is a Japanese word for cake or bisquit. It is a buildup of carbon on the resistors of the printhead, which corrode the heaters and block the holes. Thus, making prints "suck." One possible solution is to take a cotton swab and use only water, NO ALCOHOL, to clean the cartridge. You can use alcohol, though, to clean the connectors to the "heaters". Initially, if you do this, prints will look bad, since you just added water to the water-based ink. But after some prints, the problem should go away.
The other possible hardware problem, one that you can't fix yourself, is the current settings for the cartridge. If too high, then the ink coming out of the cartridge is too much, making it difficult for the heaters in the cartridge to dry all of the ink. In this case send the machine back to HP, if you still have it warrantied.
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