[QUOTEfirstname.lastname@example.org;12616]TIt would seem to me if there were a leak around the nipple there would be ink sitting in the space where the carts lie but I see none.[/QUOTE]
If there was a gross leak, then yes. But I think what happens is that when the head is pulling ink during printing or during a head clean, the seal is not good enough to prevent air being pulled into the cart, and perhaps also the ink pathway. These refillable cartridge designs have a delicate internal balance that produces some back-pressure, and that’s what prevents the cart from just draining, or at least that’s my understanding. If something weakens that back-pressure, then draining is likely to occur.
I once had a (non-IJM) CIS on an R2400 that would print fine until the next head clean, due to either a chip auto-resetting, or because the printer decided that it was time for one. After [I]every[/I] head clean, I’d have varying nozzle gaps for days. Eventually it would settle down, until the next clean. Would drive me nutz. You just can’t print like that, Other R2400 users had no trouble with their copy of that CIS, it was just my printer. It had to be that air was being sucked in at the clean do to a weak exit valve seal. I don’t recall it draining, but a CIS is a different beast to an on-head cart.
[QUOTEemail@example.com;12616]I suspect the printer is draining the cart when it does its cleaning during the initial process of turning on. Thank you once again.[/QUOTE]
Entirely possible, perhaps due to a weak seal, or maybe something else. As I said, this type of issue is surprisingly common and notoriously hard to diagnose.
One thing that [I]will[/I] cause a cart to drain is something on the capping station - liquid or crud - that contacts the head when it’s parked, causing a capillary draining action. What seals the head when it’s parked is the little rubber gasket around the edge of the capping station. There’s supposed to be a small air gap between the bottom of the head and and capping station. It’s not clear from your OP whether you cleaned this. It’s usually a good idea to do so if you’ve had a leak. Distilled water is good, but better still would be to use Piezoflush at the beginning of the process to help dissolve any dried ink.