- Joined
- Oct 27, 2005
- Messages
- 3,666
- Reaction score
- 1,349
- Points
- 337
- Location
- South Yorks, UK
- Printer Model
- Epson, Canon, HP... A "few"
Having just pulled and cut apart a cartridge in a full dissection, I've found that the hole(s) is linked to a segmented section above the outlet port. The hole(s) link through to the inner cartridge body but are effectively vents coupled with the vented area outside the bag although the holes in each connection are less than 1mm in diameter.The more intriguing aspect is how do they fill it properly to the max volume in the first place. This where the function of the little passage next to the pad comes into play. Otherwise, what is that little hole for? Nobody has even been able thus far to possibly come close to explaining that little hole is all about.
Whether they are intended to act as:
- a vent while priming/filling the cartridges
- a means of thwarting refillers
..or...
- a way of stabilising any air pressure changes in the cartridge/receiver interface
... is hard to tell, but any attempt to remove air that has ingressed into the feed section is only going to be resolved if the hole(s) are temporarily sealed during such a process.
My earlier conclusion that the clips can't be mod'd to make them flush clips may have been hasty in some respects but it'll require a little thought to figure out how best to plug those holes just to allow re-priming.
As Mikling has noted earlier, it was easy to get swayed into a false sense of "Oh, this is EASY!" as we were back a ways, when the reality is that there's some rather clever little features in these things. Challenges!... Gotta love 'em
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