Refill BCI-3/6/CLI-8 PGI-5Bk cartridges using the “German Durchstich” method
This is a refill method suggested by our forum member pharmacist. I haven’t had a chance to test this method yet, but it does look interesting! NOTE: This has only been tested with refilling Canon OEM Canon cartridges. I’m of course concerned about ink leaking out and/or air leaking in. I’m also wondering if this only works with carts that have a specific design and/or specific type of lower sponge. Canon carts have a tight sponge where some of the non OEM carts have a very loose / porous sponge.
Below are pharmacist’s comments and images regarding this method:
“It really works great and I already refilled my PM cartridge for the 6th time now (the cartridge you are seeing on the pictures I made). So far: not a single drop of ink is coming out of the refill hole (maybe some staining on the plastic back of the printhead, but this is negligible). I have to say: this method is only thoroughly tested on original Canon carts (BCI-6/CLI-8).
The first time I did this I was amazed that not a single ink is coming out (I was afraid too like you !) of the refill ink: but I was concluding if ink would come out of this hole then it would be also from the ink outlet beneath it, and we all know -with sealed carts- it won’t. But I cannot guarantee it will work with aftermarket carts. I do not experience with air leaking at all when printing sudden large area’s with the same colour whatsoever. It works great with original Canon carts.”
View larger versions of the images and discuss this method on our forum here.
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March 14th, 2008 at 12:23 pm
Can you explain why ink is not leaking out via the drilled hole ?
March 19th, 2008 at 1:45 pm
Just ask yourself: the exit hole beneath the cartridge is larger and lower than than the refill hole. The resistance is less in the ink exit hole compared to the refill hole (much larger area) and the pressure is greater there because the exit hole is on a lower base. The ink should pushing more on the exit hole than on the refill hole. You should ask yourself why no ink is leaking from the ink exit hole…..
You know the trick with a drinking straw with you finger pressed over the opening and when you lift the straw from a glass of lemonade, you can see that the liquid surface is rising according with the hight of your finger. Remove your finger and the lemonade will fall back into the glass. In short: it has to do with basic physics. That’s the reason why a Canon cartridge will leak when you make a hole above the ink compartment…….
March 22nd, 2008 at 9:20 am
The CLI-8 series (t.ex Pixma printers) have nowadays a built-in chip to track ink usage. Refilling through holes drilled on rear side wall works fine for few refills if you tape back the holes and of course, clicking “yes” to the dialogue window where Canon does not take responsability for your refill actions.
After some refills, the printer starts to behave pretty weird.
It basically print at will: partially, fully or not at all, despite the fact that cartridge is full of ink.
The weird behaviour stops at once with a brand new cartdrige, which can again be refilled just few times.
Do you think Canon has purposely engineered a ‘weird behaviour’ algorithm that unfolds when it senses that you are refilling too much?
Your method seems to make sense and we are going to test it but I got a feeling that the problem above is a systematic, consistent behaviour for the 8-series.
We’ve tested 4 printers Canon Pixma iP4500 simultaneously and they all behave exactly the same way.
Do you think is there a way to overcome that or has Canon finally found a smart way to keep its business model alive while fooling legislation?
They can claim “yes of course you can refill” and actually show it. However, after few times they can blame fluid dynamics or other reasons why the printer is no longer printing properly.
What is your opinion on this?
March 29th, 2008 at 1:13 pm
It is possible: how can you test if this is true ? Use the RKS chip extender which will anker the chips into the printhead so to minimise the exchange of the chips. This will eliminate the possible knock down of the chip caused by repetitive removal and insertion of the chip into the system (mechanical or static electricity problems) and use non-chipped aftermarket cartridges or even refilled cartridges without chip and see what will happen. When using aftermarket cartridges the argument of ink blockage (caused by repetitive refilling, blabla) and the weird printing problems still exist, then the chip is the most likely cause, as you exchange the old cartridge with a brand new cartridge everytime.
I’m very interesting if this would be true, as I’m suggesting that Canon is allowing Pelikan/Peach to produce an alternative chipped cartridge with active ink level status and LED and they are not concerning about patents……
Maybe a secret deal between the companies mentioned above…..?
If you can prove your theory about the chip is true you can contact the European Commission to start an investigation. You know about the astronomical fines Microsoft has to pay…..?
I do have strong suspicions that the firmware can actually be reprogrammed to omit the chips and fall back on the old fashioned optical ink detection systems using the prism. It seems that on the MP500, when flashed to the japanese version, the chip detection system is disabled and falls back on the prism/optical detection system again.