A tape guide plate and finger plate assembly for the leading end portion of the carton or case sealing tape is provided in order to effectively prevent the leading end portion of the carton or case sealing tape from folding over upon itself whereby the adhesive material, disposed upon the front side surface portion of the sealing tape would effectively become stuck to itself and thereby foul further carton or case seal-ing operations. In addition, rollers are provided upon a finger plate so as to permit the sealing tape to be dispensed in a substantially frictionless or drag-free manner.