length of the chute the label 30 is attached to the package at a location which is spaced inward a predetermined distance from and oriented to that one edge of the package the system also includes a second label printer 40 which is adapted to print a machine readable label upc code 42 and to deliver such label onto a chute 44 the printer mechanism may be of the type disclosed in u s pat no 3 866 851 issued feb 18 1975 the label delivery mechanism 44 including the chute and associated interlock switch not shown are essentially identical to the same apparatus as used in the printer 20 and details are disclosed in u s pat no 3 866 851 as previously noted the interlock switch of delivery mechanism 44 is also incorporated in the printer interlock control thus unless labels are removed from both of the delivery mechanisms 32 and 44 after a printing cycle both printers 20 and 40 are inhibited details of the interlock control are conventional hence the interlock is shown schematically in fig8 the second printer 40 incorporates within its housing a code conversion unit 46 and a second computer 47 as indicated in fig8 coded weight information from the scale price per unit weight entered manually and value as calculated by computer 22 are all handled on a per se known basis as more fully explained in u s pat no 3 557 353 however in this system it is also.