Most likely they are locked out by a region code, ,or via Metered vs Sold
The printer comes in a neutral state, when you purchase and install your first consumable it locks to its designation (Metered vs sold) and dependant on the model and area, possibly to a Region.
Metered = Xerox contracted
Sold = Purchased through Retail
Regions are
NA , DMO and Asia Pacific
DMO, Dmoso " - includes the marketing, sales and servicing of Xerox products, supplies, and services in (Latin America, Mexico, Brazil) the Middle East, India, Eurasia and Central-Eastern Europe (Russia area) and Africa.
Sources:
TechDirt
Wikipedia
Google
The only way to change the printer after it is locked is by paying to have it done.
Or you have a single bad toner cart that juts needs to be exchanged
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Joe Arseneau
