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    Guidance on CISS tank differences.

    Have some feedback. So basically there are three chambers in the "box like" tanks. The air chamber, the ink chamber and the buffer chamber. The air chamber is contained in a small rectangle profiled chamber running horizontally through the tank for a fraction of its width and depth (can be...
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    Guidance on CISS tank differences.

    Hi All, Does anyone know the internal/operational difference between the two types of CISS tanks shown in the pictures? The curved one is more than obviously a classic two chambers tank, connected via a short bottom slit. However, I am not sure how the chambers of the "cornered" tanks on the...
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    3d print a tube T-arm

    Uploaded...
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    3d print a tube T-arm

    Thank you for your kind offer, but usually, the own-made custom solution fits better (no offense please). So I created one in FreeCAD. Attaching the FreeCAD file, the STL file (Black e-SUN PLA+) and a few pictures. The old T-arm is left in the picture for reasons of comparison and to clearly...
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    3d print a tube T-arm

    Hi All, As googling around gave no results, anyone has a link to a tube T-Arm stl file, to 3d print it? Cheers, Theo
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    The role of one way valve and air in the line

    Oh well, sometimes we need to go back to the basics. Apparently, at some point, I filled up ink through the air chamber and not through the ink chamber. Add to that that I long ago forgot the tanks are basically Mariotte bottles and this is how a year-long problem is now solved! Primed the...
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    The role of one way valve and air in the line

    Just a clarification. It is not the whole ink returning back. Part of the tube gets drained ( about 10% to 15% measured from the cartridge) and the print head is not able to suck enough ink to refill the line. If I place the bottom of the tanks at top of the catridge height, no issues (have...
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    The role of one way valve and air in the line

    Could you explain a bit more about the optimal relative height? The bottom of the tank (not the case of the tank, the tank itself) and the bottom of the cartridge (or the bottom of the head) should be at what relative height? On the desk, at printer level, at head level, at cartridge level, at...
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    The role of one way valve and air in the line

    Refill cartridges would be too much hustle for the specific environment. The reason for the one way valves is that my first CISS installation few years ago, had ones installed. In the particular case, I do not see why one way valves would not work as one way! Would removing them create leakage...
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    The role of one way valve and air in the line

    Thank you for your answer. Posting in CISS subconsciously took for granted that everyone knows my CISS. So... I have external tanks for Epson WF7710 and connected to the CISS cartridges through one way valves. One thing I notice is: If the cartridge plug is removed (so no air tight system)...
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    The role of one way valve and air in the line

    Hi All, Constantly getting air gaps in the yellow color line makes me wonder what is the role of one way valves. I would expect that pushing the valve, would push ink towards the cartridge and not return ink back. Basically I would expect constant pumping to fill the line. Any hints? Best...
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    Hi Everyone

    Hi, Thank you for this community. I am Theo. Started my CISS journey with HP8600 N911g Plus, until the print head caps exploded a day I was pumping some cleaning liquid (and still tried to fix them with a short of epoxy paste :) No I have an Epson WF7710DWF. Great VFM printer and even better...
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