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The cartridge carrier is sensed as being unable to move. That explains the message about removing all protective materials from inside - there are shipping inserts, and pieces of tape sometimes, that keep the cartridge carrier from sliding about.
The inserts are usually styrofoam and quite easy to see, but sometimes a cardboard insert is used instead.
Please re-examine for any sort of folded cardboard that might be holding the cartridge carrier in place and keeping it from moving.
After that... if you followed written directions or a diagram, for unpacking this printer, then the only conclusion available would be, that it is defective from store/vendor, and you should in that event, pack it up again, report the failure at once to the store or vendor, and return it packed up and with the sales slip as soon as feasible, to get it exchanged for one that isn't defective, does fully work, and is the same model or one of equal or greater value and equivalent capabilities.
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