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Got it. I printed a bunch of photos and the ink levels have barely moved. A couple of carts show some depletion and foam on the sponge side and negligible lowering on the reservoir side. These are new oems.

Just got my pro 100 yesterday. Prints beautifully. Nit picking, but the ink monitor (Windows) is so small it seems less than useful. Is there a way to get numerical values?

One time use chips are fine for disposable carts. But they end up being about 1/2 to 1/3 the cost of OEM with questionable ink sources.

Experiment 29.724 1.Pulled and weighed magenta cart. Was 20.1 gm 2. Reinserted 3. Printed a small black line 4. Reweighed 20.1 gm 5. Removed and reinserted sever times. No change in weight. To come: On next reset cycle I will weigh all carts. Then top up the low one. Print a tiny pic and reweigh.

Yes. The patent is for epson but canon probably does something similar for models with non-resettable chips. From the patent: "According to the memory device in accordance With this first aspect of the present invention, in the event that the value of Write data is greater than the data value...

I removed the setup carts as soon as the said low. I dent weigh them. But I don't know the wight of them when full or empty. So there's that. Observation was that after a removal and reinsert the printer announced "used genuine" , move the head home and then fell silent. I don't know what a...

Because "low" on my printer (ts9020) is NOT announced when the reservoir tank is empty (the optical sensor) but sometime after that - this means half the sponge is empty. We do not want this to happen. So refill the reservoir at half indication and then when low (or empty) occurs. I would...

Driver Training? Looks like a world compatible.

Look at the patent. It is for a one-time chip since it will not allow resetting to a higher level. It still need to execute the serial protocol and read and write data. They just lie about the reason for not allowing higher values to be written. "Accidental" indeed.

When the cars self drive there will be no steering wheel. Coming soon.

A reset can only occur when the printer decides that the cart is low- that is, a cartfull has been consumed. The user cannot control this. So there are no excessive resets beyond normal use. Its just about refill strategy and no more.

Who said the chip resetter people and one-time chippers weren't greedy too? At least the printer manufacturers are trying to recoup loss-leader sales of printer via ink.

Adding a little science I made some measurements. Empty cart w/ plug,no clip 11gm Sponge full, resvr. empty 17 gm/no clip Sponge and resvr. full 22 gm/no clip So cart holds 11 ml with sponge holding 6 and resvr. holding 5. If low occurs at 20% then that implies 2.2 ml left or empty resvr with...

From the weasel word in the patent they write the decreasing ink estimate to the eeprom, among other data. This is needed if cart is removed and replaced in the same or another machine. But the memory will not accept an increasing value-acts like a ratchet-or screw. Can't find any Canon patents...

A fun read is an Epson patent which describes a chip design which prevents "accidental" writes which raise the available ink counter value. Apparently standard error checking isn't good enough. Guess they couldn't get a patent on preventing user resets. But the chip doesn't prevent "accidental"...

Someone should tell Canon that the Pro100 had too many grey carts. Good for cloudy days. GeeWhiz.

Report on 2nd day with TS9020 and PrecColor refillable cli270/271 carts and ink. Observations: (1) when an OEM cart is first inserted it says "genuine Canon cart" (2) IF an OEM cart is removed then reinserted it says "used genuine Canon cart" (3) The behavior of the refillable is exactly the...

I installed the PC cli271 carts in my ts9020 yestetday.Prints are indistinguishable from OEM. I then printed 20 pages of pure cyan on plain paper to drive that channel to 'low'. It did. To my suprised the chip reset at low , not empty. The tank was empty but sponge still fill. So maybe...

My toys as a child were labeled "made in occupied Japan". They were tin toys made of scrap US soup cans and suck. Very valuable if I still had them

Not at all. I was just commenting that its still a hot topic. I also learned not to refill oem black-box cli271 yellow carts though I don't intend to.