Improvements in security relating to the use of personalized document production equipment. The invention has particular use with respect to printers that are used to produce plastic cards, such as financial cards and identification cards. The invention prevents the unauthorized production of personalized documents through the use of stolen or fraudulently obtained production equipment or software. The equipment is locked until a user enters authorization data that matches authorization data stored in memory of the equipment. The equipment is able to power-up in the locked state, at which point the user is prompted to enter the authorization data. As a result, if the equipment is stolen, the thief is unable to operate the equipment without the necessary authorization data.