This is a really useful condition if the customer is billable, since the machine will suck up hundreds of dollars in ink, and dump it directly in the maintenance cartridge. A more accurate message might be: "The printer is sucking up all your ink and spitting it in the waste container. Buy lots more expensive ink." I suppose you'll need more of the story ...
It started out with an image quality issue, which was resolved with a print head. And this might be part of the cause. If there is a specific procedure to follow, I doubt that it was followed. So now when you turn it on, you see the firmware level, then it goes right into "The printer is filling ink from the ink tanks. Please Wait." It will do this for 1/2 hour or so, consuming as much ink as you care to give it. Then it will print one page, then go back into ink sucking mode.
So I have a couple theories, and a bunch of questions about theory.
1) Could there be an air bubble somewhere, conceivably in the printhead, that needs to be purged to get an accurate reading on ink pressure levels? How is this addressed?
2) How exactly does the machine determine ink pressure/level? There was no sensor on the pumps, and not on the service station. There is a "spit sensor" like HP uses next to the service station, but it's very rudimentary. Just a sender and receiver to determine if any ink is ejected. It could not determine if a specific oriface was passing ink.
3) Is there a way to get into service mode before the machine goes into ink sucking mode?
I would appreciate any explanation of how this system works.
This machine has barely been used, very low square feet. =^..^=
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