1. Dismiss Notice
  2. Picture Of The Week (POW) Information and Submissions
    CLICK HERE!
    (if you are logged in, this notice can be dismissed using the "x" to the top right of the notice)

    Dismiss Notice
  3. Official PK Poll: Is there any future in refilling?
    CLICK HERE!
    (if you are logged in, this notice can be dismissed using the "x" to the top right of the notice)

    Dismiss Notice
  4. PK Featured Thread: Which SSD to buy?
    CLICK HERE!
    (if you are logged in, this notice can be dismissed using the "x" to the top right of the notice)

    Dismiss Notice

Spongeless HP 123 cartridge?

Discussion in 'Hewlett Packard HP InkJet Printers' started by imbaine13, Jun 7, 2019.

  1. Jun 7, 2019
    imbaine13

    imbaine13 Print Lurker

    Joined:
    Jun 7, 2019
    Messages:
    3
    Likes Received:
    0
    Trophy Points:
    2
    Printer Model:
    HP 2130
    Hello everyone,

    I want to remove the sponge from a black HP 123 cart, and make it spongeless.
    Something similar to this https://www.bchtechnologies.com/mod...1-62-63-64-65-66-67-68-69-70-as-rfc-hpsq.html except without their kit.

    I have tried to find a way to prevent ink leaking from the print head, but all in vain. When i make the cart air tight, it doesn't leak, but it also wont print. Can I get some kind of valve i could use that will prevent air flowing in and ink leaking out when the cart is not printing, but allow the air in when it's printing?

    Appreciate any input, thanks!

    Cheers,
    Isaac.
     
  2. Jun 7, 2019
    The Hat

    The Hat Printer VIP Moderator

    Joined:
    Jan 18, 2010
    Messages:
    11,471
    Likes Received:
    5,278
    Trophy Points:
    403
    Location:
    Wicklow Ireland
    Printer Model:
    Canon were, BUT 3D is better..
    The simple answer is no, you must use a sponge in the OEM carts..
     
    PeterBJ likes this.
  3. Jun 7, 2019
    imbaine13

    imbaine13 Print Lurker

    Joined:
    Jun 7, 2019
    Messages:
    3
    Likes Received:
    0
    Trophy Points:
    2
    Printer Model:
    HP 2130
    Thanks for the reply. However, the guys in the link used some kind of tiny damper attached to the lid of the cart on the inside and therefore didn't need the sponge. I'm mostly curious what it is that they used.
     
  4. Jun 8, 2019
    The Hat

    The Hat Printer VIP Moderator

    Joined:
    Jan 18, 2010
    Messages:
    11,471
    Likes Received:
    5,278
    Trophy Points:
    403
    Location:
    Wicklow Ireland
    Printer Model:
    Canon were, BUT 3D is better..
    The method in this guys video does work if you purchase the items in his link, but he also describes his method as very difficult to install, so if you’re not very proficient at refilling then this method is not for you, even after watching his detailed video..
     
  5. Jun 8, 2019
    PeterBJ

    PeterBJ Printer VIP Platinum Printer Member

    Joined:
    Nov 27, 2010
    Messages:
    4,002
    Likes Received:
    3,319
    Trophy Points:
    333
    Location:
    Copenhagen Denmark
    Printer Model:
    Canon iP4300 + Epson scanner
    The sponge prevents ink leakage, as long as it is not oversaturated. Capillary forces hold ink in the sponge and the printhead must actively suck the ink from the sponge. The "filters" at the ink inlets are not primarily filters but surface tension breakers necessary for the sponge-ink inlet ink transfer. Remove the "filters" and the cartridge cannot print.

    The print head can only generate a small suction/negative pressure, this makes the setup of CISS systems critical. Too much feed pressure fron ink bottles placed too high causes ink leakage, and too low feed pressure from ink bottles placed too low causes ink starvation. This pressure balance is delicate which explains why CISS systems are difficult to get working properly.

    If the sponges in a sponged cartridge are oversaturated the cartridge will leak. The cartridges will of course also leak if the sponges are removed. If the sponges are removed, the negative pressure to prevent leaking must be created in another way. Sealing the cartridge will stop ink flow and drilling a small hole in the lid will cause leaking. A small hole only causes resistance to air flow, it does not create a negative pressure.

    I think the small round "dampers" are in fact small membrane and spring type pressure regulators, that should provide the proper negative pressure for the cartridge to function properly. In theory the principle is simple, in practise the function of the small regulators that also need to be inexpensive is critical, I think.

    IIRC some spongeless refillable cartridges for Epson also used a membrane type air pressure regulator.

    Here are the dampers or regulators from the video, they are the round things attached to the cartridge lid:

    HP Spongeless.jpg

    If you buy the kit and install it or you find an alternative solution, please report your results.
     
    The Hat likes this.
  6. Jun 8, 2019
    PeterBJ

    PeterBJ Printer VIP Platinum Printer Member

    Joined:
    Nov 27, 2010
    Messages:
    4,002
    Likes Received:
    3,319
    Trophy Points:
    333
    Location:
    Copenhagen Denmark
    Printer Model:
    Canon iP4300 + Epson scanner
    Out of curiosity I checked if these kits were also available for Canon. If this kit were available from an EU country I might have ordered one out of curiosity. I found an explanation that showed my guess was spot on:
     
  7. Jun 13, 2019
    soysauce

    soysauce Getting Fingers Dirty

    Joined:
    Jan 8, 2018
    Messages:
    11
    Likes Received:
    12
    Trophy Points:
    41
    Printer Model:
    Epson XP-520, WF-2630
    The Hat and PeterBJ like this.
  8. Jun 13, 2019
    The Hat

    The Hat Printer VIP Moderator

    Joined:
    Jan 18, 2010
    Messages:
    11,471
    Likes Received:
    5,278
    Trophy Points:
    403
    Location:
    Wicklow Ireland
    Printer Model:
    Canon were, BUT 3D is better..
    We can wait on your good research..:D
     

Share This Page