930 an input apparatus 940 for example a keyboard a cash register 950 and a receipt printer 970 electric current is supplied to the scanning and receiving stations via power inputs 199 and 999 schematically shown in fig2 a and 2b coming from an ac power supply battery rechargeable battery or any other source of an electric current with reference to fig2 a and 3 a second light source and associated projection assembly 122 is provided the projection assembly will typically be separate from lens assembly 140 which may be used by the illuminating light source 120 however depending on the configuration sharing of optical components is possible the second light source 122 is configured to project a targeting image 820 onto the surface 810 of the checkout station 800 the target image 820 is designed to indicate to a user where an object should be placed for scanning purposes the target from the second light source can be better defined than the spot 600 because a generally uniform illumination is not required advantageously the use of a target separate from the illumination light source 120 permits a wider variety of scanning devices to be used and in particular allows the use of non.