In a printing control apparatus and method for performing printing by a printing device based upon a print job, a password corresponding to a print job is entered and print data with the accompanying password is generated and sent from a host computer to a printer, where the print data is to be printed. A motion manager component implementing a supervisory control function and at least one trajectory generation algorithm is stored on a motion controller. An beater element having a plurality of blades is rotatably mounted within the sump wherein some of the blades impart a shear force and a normal force along the axis of rotation to the toner while others of the blades impart a shear force and a normal force towards or away from the axis of rotation to the toner as the beater is rotated through the toner. The received signal carries an affinity code of the peer device so that the device can detect the affinity of the peer device by comparing the received affinity code with its preset affinity code.