Your only hope is to contact the seller. There is no mnagical back door, and this one can't even be reset remotely, a tech is required to do it onsite, which is at considerable expense.
Unfortunately the default password does not work (1111) and also for the N / S (2YX031148)
Its either 1111 or the printers own Serial number (Case Sensitive)
hello i just took possession of a C8000 printer i want to log in as administrator but the default password does not work do you have a solution