Ok, replaced pump, toner detection rfid board, pump hose and cartridge. Worked fine for an hour or so and again now says “no toner, black” . I can watch toner bottle spin, I can run add toner in sp mode and I can shut of sp3045 to make it print , but then when I turn detection back on it says to add a new cartridge. Vt display on sp3201 shows about 4.52 and can’t seem to get it to go lower.
any thoughts?
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