A few suggestions that have gotten me on the right track (finally!):
- don't go for the flat-out cheapest ink. I followed Grandad's suggestion on the Formulabs ink from alotofthings.com for my i9900. the ink and the people have been great. they really know what they're talking about, and are...
PrecisionRoller.com has them for about $10 more. Excellent service. I used them when Inkcessories was out of stock...
Yes, they're genuine Canon sealed boxes.
Sounds like you're making progress. I agree - I'd stick with the colored ink and go for a better black. I'm still doing well with the TylerMartin.com inks. I have an i9900. If you need a new head, you might try PrecisionRoller.com - they were about half of Canon's price and it's a genuine...
If you can scrape together two more quarters per cartridge, I've had great luck so far with the products from TylerMartin.com. A six-pack of is just $9.99. So for a six-pack of all eight colors with shipping my bill was just $86.00. Come to think of it, that's the same price as ONE six-pack...
My i9900 also stopped printing black this week. While searching for help, I came across this thread.
In regard to the instructions on how to disassemble and clean the i9900 print head...
This worked exactly as described above. However, I had already destroyed the integrated circuit, so I had...