59.CO error could be a bad motor or Developer motor rotation error. Remove all toner, power cycle the printer and re-install one at a time, closing the access door each time before inserting another. See if one of the supplies seems to trigger the error.
If the issue still persists, for the next course of action, I have sent you a private message, for more details that cannot be shared in a public post.
Please send me the same info, hope it might help me too?
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