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Old Mar 3, 2005, 6:38 PM   #1
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I am having an .eu pixma 4000, my question:

In the review this site gives, the low inkt warning looks like:




I checked my cartridges manually, the are around 75% and i am getting a inkt levels like:







I am a bit confused here, anyone got an explanation ?
like - the meter shows highest inkt level for every cartridge ?


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Old Mar 3, 2005, 7:55 PM   #2
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From what I've read about these printers - that's normal. They only tell you the ink is about to run out when the ink cartridge is about 95% empty.

So its anybody's guess as to how much more you can print :roll:
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Old Mar 3, 2005, 9:35 PM   #3
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I have an iP5000 and can confirm the late "Low Ink" status warning. It is a bitdisconcerting as at 1stit had me thinking what an incredible ink "sipper" this printer is/was.

While not an ink guzzler it pays to have a set of cartridges on standby. So far I have replaced Cyan, yellow & black and now show the pigmant black low. No wonder as I have printed 500+ sheets of text (the Auto-duplex works great on standard media sizes- but it's back to manually turning printed paper around on custom size media) and many, many pictures of all sizes with at least 1/2 being A4 size.

After receivingthe "Low Ink"warning I haveprinted approx10 to 12 more 4 X 6, or 3 to 4 more 8 X 10's borderless brfore I get an "out of ink" status ona "Low INK" warningcartridge andthe printer halts.

Canon eStore has good prices on OEM ink, worth a look.
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Old Mar 3, 2005, 10:08 PM   #4
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When the tank is empty you have quite a bit of ink left in the sponge. I drained a sponge completely and then filled the tank. All of the ink from the tank was absorbed in the sponge and I had to completely refill the tank. My guess from what dishinit says is that it can't use all of the ink remaining in the sponge. I emptied mine by putting a paper towel against the sponge with the fill hole open and leaving it to completely drain for a day.

I like the way it works fine. I don't want to be bothered with ink until one of the tanks is empty and then it gets refilled immediately. I usually just top everything off when one runs empty. It would be a pain if you weren't refilling though since you don't really know when it will quit.

Canon is the only printer that actually measures the ink in the tank. Most calculate how much you have used. Epsons won't print after it calculates it is empty and people who have checked say there is still some left when it shows empty.

They are very easy to refill BTW. Much easier than the color cartridges on my old HP.
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Old Mar 4, 2005, 4:03 AM   #5
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The review page http://www.steves-digicams.com/2004_...p4000_pg2.html
explains that the monitor relies on a prism in the bottom of one half of the tank so nothing happens until this is uncovered. A usenet poster claims that from this point on the printer counts drops of ink to measure from low to empty.
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Old Mar 4, 2005, 4:55 AM   #6
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thanks alot guys,


Hmm, just 1 question, I dont understand why e.g. Cyan and Magenta is shown 1/3 FULL and Yellow almost empty... Anybodey can explain this ?




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Old Mar 4, 2005, 11:08 AM   #7
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Could be an "artists impression", not a screen shot. My i865 gave low warning with level shown approx 1/4 full and other carts full.
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Old Mar 4, 2005, 9:44 PM   #8
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From Canon:

"The Canon Think Tank SystemT uses a combination optical sensor and ink
counters to estimate the amount of ink inside the ink tanks. The
optical sensor can only verify whether ink exists inside the reservoir
or not. When the state of the ink tanks is between 100% and 50%
capacity, the ink level status is determined by the ink counter.

The ink counters estimate the amount of ink left inside each ink tank
based on the ink usage and the purge cycle (the purge cycle refers to
whenever the printer is cleaning itself). When the optical sensor
triggers, this means that ink inside the reservoir portion of the ink
tank is empty and the ink level status should display that 25% of the
ink is available. The remaining ink exists inside the sponges inside
the ink tank.

The ink counters are used to estimate the amount of ink inside sponge
and then will trigger an error message when the ink tank is empty. A
typical problem that may occur is if an ink tank is replaced when the
ink level status displays that the level is higher than 25%. Since the
optical sensor can only determine if there is ink inside the reservoir
and not the intermediate ink level, the ink level status never changes
because nothing triggers that the ink tank has been changed. The ink
level status will probably remain at 50% until the ink inside the ink
tank reservoir empties, then the ink level status will display that 25%
of the ink left and decrement the ink counter as normal.

Since the ink level status is maintained inside the printer and not by
driver, uninstalling the driver will not reset the ink counter. If it
is necessary to reset the counter on a specific ink tank, temporarily
place an empty ink tank in place of the desired ink tank counter that
needs to be reset. The ink level status should display that the ink
tank is 25% full. Replace the full ink tank back into the appropriate
slot and the ink level status should display at 100%. An obvious issue
is that if the ink tank placed into the printer is not full, the ink
level status will still indicate that the ink tank is 100% full. "
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Old Mar 23, 2005, 4:17 PM   #9
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Hi there

I just read your post and you mentioned that the canon ip4000 was dead easy to refill have you got a link to the company that you buy your refill from.? Thanks Lola
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