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#11 11/06/2009 9:48:14 am

Grandad35
InkJet Master
From: USA
Registered: 02/23/2005
Posts: 1162

Re: Canon i9900 printhead problem??

glf wrote:

The test for cyan shows a block split at the halfway point.  The upper is part is a lighter version of the lower.

Here are a few similar problems:
http://www.nifty-stuff.com/forum/viewto … 550#p15550
http://www.nifty-stuff.com/forum/viewto … 753#p13753
If there is a discontinuity at exactly the midpoint in a nozzle check, there is a very high probability that the print head is defective.  It is also possible that the mother board in the printer has a problem or that the gold contacts on the back of the print head are dirty and that one of them isn't making contact.  Gently clean them with a soft pencil eraser to test this (but it is a low probability fix).

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#12 11/06/2009 10:59:33 am

glf
InkJet Forum Newbie
Registered: 11/04/2009
Posts: 8

Re: Canon i9900 printhead problem??

I appreciate all of your help but it is now time for me to make a decision.  I cleaned the gold contact points but now the printer is out of two of its cartridges.  Do I, or don't I, spend $30 more to see if we can figure this out?

My husband has been saying all along that he thought that there was a problem wherever the printer stores the image (I am guessing that would be the motherboard). 

On another note, I tried printing the beach picture last night.  Nothing had changed.  After that failure I printed a copy of grayscale prints for my mother-in-law.  They were a funny greenish color.  I turned the printer off and back on.  Viola, the black-and-white photos were perfect.

Does that mean anything?  Do I blow more money on what was once a wonderful printer?

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#13 11/06/2009 2:48:39 pm

Grandad35
InkJet Master
From: USA
Registered: 02/23/2005
Posts: 1162

Re: Canon i9900 printhead problem??

You must answer the difficult "GMAB" question (do I chance throwing good money after bad).

1. You could probably sell your i9900 for $150-250 on ebay, even with the ink problem.
2. You can buy a new Pro 9000 (same 8 inks, but CLI-8 carts) for $400 from Amazon.  Since you use OEM carts, they will only cost about $2 more than BCI-6 carts.  In my area, there is a "New in box" Pro 9000 listed for $325 (http://boston.craigslist.org/bmw/sys/1453907616.html).
If you don't need the large format or 8 inks, there are lots of new, lower price printers for sale on craigslist.
3. A green cast on a print usually means that you are missing some magenta (as was noted in a previous post.
4. When the B&W print came out perfect, were you printing in draft mode on plain paper?  I believe that this only uses the black ink (others can correct me if I'm wrong on this).  Is it possible that the two prints were made with different settings?

There's a good chance that a new print head would fix the problem, but it's always a crap-shoot when it comes to making such a GMAB decision.  Good luck.

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#14 11/06/2009 4:46:04 pm

glf
InkJet Forum Newbie
Registered: 11/04/2009
Posts: 8

Re: Canon i9900 printhead problem??

The black and white printouts were copies of an old photo that I scanned.  They were printed on 5x7 glossy photo paper, in grayscale.  They were great.

I think that I am going to let the Canon go.  If I knew more about printers I might be tempted to give the new print head a try but, in the meantime, I don't have a photo printer at all.

And I do use the 13x19 size quite often.  So I will be getting another.

So, thank you for everything.  Going to look for my new machine.

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