e-Studio 555 Not Recognizing Toner Cartridge

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  • Martini
    • Jun 2025

    #1

    e-Studio 555 Not Recognizing Toner Cartridge

    I've been working on a e-Studio 555 with just over 1M on it.
    Problem is that the customer just put a new OEM cart in the machine-machine says "install new toner, cartridge not recognized".
    Another tech tried putting another cart in, same thing. The machine operates fine; even on the RUI the toner status is 100%.
    Being that the copier is located in a school, the key-op gets annoyed at every teacher's comment "I think the copier needs toner".
    Both the toner cart sensor & the toner sensor are OK.
    Any ideas?
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