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Old Jul 27, 2007, 1:04 PM   #1
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I've just experienced a problem in which the yellow ink cartridge went dry without the monitor ever warning that it was running low or out of ink. Fortunately, it appears that I caught the problem before the print head failed.

There doesn't seem to be anything wrong with the "prisim" area of the dry cartridge where (I think) the light beam is focused to determine the ink level status.

Can anyone tell me about the light source for the ink monitor(s)?

Is there one for each of the six cartridges or is a single source used to check each cartridge as it passes by?

If the former, where would I look to see if something is covering the light source for the yellow cartridge?

Any thoughts would be appreciated.

--------------------- Bill
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Old Jul 30, 2007, 7:59 AM   #2
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Old Sep 19, 2007, 9:37 PM   #3
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So the printer didn't even show that the cartridge was "low"??

Perhaps it was also that cartridge. Have you tried a new cartridge? I'm sure you've bought a new yellow and see how that works?
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Old Sep 23, 2007, 10:45 PM   #4
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Yes, there was never a low ink indication or an out of ink message.

A new yellow cartridge is working fine.

Just today, I noticed a problem with print quality again. Since the Photo Cyan cartridge had been showing as low for quite some time, I took it out and found it to be dry on the reservoir side and the sponge side looked to be dry also even though I never received the out of ink message.

After putting in a new PC cartridge, print quality returned to normal.

Now then, this is twice I've run out of ink with no message being displayed, once with Yellow and once with Photo Cyan.

I'd sure like to know if there is one sensor for each cartridge or if one sensor checks all of them as they come by, and how to access the sensor(s) for cleaning.

-------------------------- Bill

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