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do you mean the same procedure done above but with the cartridge in horizontal position ?

I repeated everything on the yellow cartridge as you suggested: at the end of the procedure with the syringe, the cartridge had the sides pressed because of the vacuum created inside. After removing the last piece of tape from the large circular hole, the vacuum effect has disappeared but the...

I've done what suggested above even using the syringe, but I've seen no improvement: the problem is always the same.

I did not have available the special syringe at the time when I performed the procedure you described. I'm going to repeat the steps once I get back the charging syringe.

I tried the suggested steps without getting any improvement in the reported problem. I could not use the syringe because it is not available at the time.

... yes, but before I'll try the simplest steps. If I do not solve with the sugestions og @The Hat I'm going to performs printhead cleaning as shown in your video

@flyboy maybe I'm wrong, but I'm afraid of causing some damage to the printhead or its electronic.

@The Hat Let me see if I understand you correctly: after closing the five air intakes, the idea is to ensure that the air bubbles trapped in the ink are pushed into the top of the cartridge with a few taps ?

The refill was made using this procedure and the QU-Fill refill tool, the same used for the black cartridge that is working properly. I will try to remove the ink and refill the color cartridges with new ink, to see if I solve the starvation problem. I leave the print head cleaning procedure...

Considering the above details, who can be considered the main suspect of the ink starvation: the print heads or ink ?

Thank you :)

Video of your description here :)

.. exactly, I'm using this rechargeable kit taken two years ago from Octopus Office. I have an update on the tests done after the first post: - Even the examples 1 and 2 are actually affected by this issue: the first page printed is not affected by this problem, the others begin to show the...

Hello, I have an HP Officejet Pro 8600 N911a (CM749A) printer with firmware version CLP1CN1435AR and the latest drivers. Even though the printer test page is almost perfect, I have a problem printing some color images respectively inside a pdf and a word document: 90% of the time the image is...

I agree that the descriptions of the products on Aliexpress leave much to be desired, as well as the answers given by salespeople to my questions on the products above. Thinking back to the indication of 20% residual ink: maybe it's just a strategy to ensure that the user, removing the...

It seems that the fact that the ink level is shown or not it's just a manufacturer customization made according to customer needs: see this product. Vendors of non original cartridge may have an interest in this type of customization. The indication of 20% ink can be a safety threshold...

Some examples of replacement chip found, selected based on the number of products sold, and user feedback: Chip 1: does not show the ink level. Chip 2: displays the ink level Although the pcb looks identical one does not show the ink level CISS: displays the ink level Refillable cartridges...

Hello Peter, your answer seems to have anticipated what I was trying to figure out: the fact that a chip does not show the ink level is not a technical limitation, but seems a trick to prevent the printer to mark the chip as unusable. Anyway, I do not understand why with chips that do not...

I have an HP OfficeJet Pro 8600 N911a printer and I'm looking for cartridge chips on Aliexpress.com . Can someone please suggest what is the best type of replacement chip to use on refilled cartridges ? The choice are: - show ink level - do not show ink level - auto reset chip Product...

Hello, I've found in this post a link to Octoinkjet conical plastic "needles" in 4 different sizes. Can someone plese tell what is the correct size in gauges to refill HP 950/951 XL cartdriges, for example like the ones used here at Octopus website ?