l_d_allan
Fan of Printing
FNO? (for nerds only)
Under the strong upper tape with "Push" on these CLI-8 carts, there is a plastic ball sealing the "Inlet Port"
Note the plastic ball has been removed in the upper cart, replaced by a RJetTek #1813 plug. There's kind of a "tunnel" leading into the reservoir side of the cart.
I've removed maybe 100 of these plastic balls. My impression had been that the inlet port is intended for refillers to use with the "Traditional Top Refilling Method" that I employ. It's also useful ... if not essential ... for flushing/purging of carts. (Note that many on this forum advocate drilling a separate hole above the reservoir and leaving the inlet port alone.)
But lately I've been scratching my head ... "Why would Canon leave an inlet port to facilitate refilling and flushing/purging?"
I never really thought how Canon originally fills the carts. Perhaps I had a fuzzy impression that they put in the ink through the outlet port, and then put on the filter, and then the orange outlet cap?
Or maybe with the outlet port filter in place, a'la how some forum members refill PGI-9 carts for the Pro-9500?
Some variant of vacuum refilling via the outlet port?
FWIW, my emerging speculation is that Canon fills through the inlet port, then seals with the plastic ball, and further seals with the tape. Actually, I'd be surprised if that isn't how it's done. Duh? PGO ... profound grasp of the obvious?
It still seemed odd to have the "Push" label there. My impression is that you actually shouldn't Push the plastic ball into the reservoir, but rather pull it out.
Ahhhh ... but isn't that where you Push to insert the cart into the print-head carrier until it "Clicks" into place?
I'm not sure what my point is ... if any.
I think part of my pondering is that I've resisted German refilling because I had the impression that "Traditional top filling is how Canon intended carts to be refilled."
Far be it from me to claim to fathom the Japanese mind of Canon, but it seems unlikely that Canon had refilling facilitation as a priority during cart design. Did their marketing used to claim "Easy to Refill" compared to HP and/or Epson?
Under the strong upper tape with "Push" on these CLI-8 carts, there is a plastic ball sealing the "Inlet Port"
Note the plastic ball has been removed in the upper cart, replaced by a RJetTek #1813 plug. There's kind of a "tunnel" leading into the reservoir side of the cart.
I've removed maybe 100 of these plastic balls. My impression had been that the inlet port is intended for refillers to use with the "Traditional Top Refilling Method" that I employ. It's also useful ... if not essential ... for flushing/purging of carts. (Note that many on this forum advocate drilling a separate hole above the reservoir and leaving the inlet port alone.)
But lately I've been scratching my head ... "Why would Canon leave an inlet port to facilitate refilling and flushing/purging?"
I never really thought how Canon originally fills the carts. Perhaps I had a fuzzy impression that they put in the ink through the outlet port, and then put on the filter, and then the orange outlet cap?
Or maybe with the outlet port filter in place, a'la how some forum members refill PGI-9 carts for the Pro-9500?
Some variant of vacuum refilling via the outlet port?
FWIW, my emerging speculation is that Canon fills through the inlet port, then seals with the plastic ball, and further seals with the tape. Actually, I'd be surprised if that isn't how it's done. Duh? PGO ... profound grasp of the obvious?
It still seemed odd to have the "Push" label there. My impression is that you actually shouldn't Push the plastic ball into the reservoir, but rather pull it out.
Ahhhh ... but isn't that where you Push to insert the cart into the print-head carrier until it "Clicks" into place?
I'm not sure what my point is ... if any.
I think part of my pondering is that I've resisted German refilling because I had the impression that "Traditional top filling is how Canon intended carts to be refilled."
Far be it from me to claim to fathom the Japanese mind of Canon, but it seems unlikely that Canon had refilling facilitation as a priority during cart design. Did their marketing used to claim "Easy to Refill" compared to HP and/or Epson?
