A handheld printer or scanner implementing the device may thus be moved in different directions across {HEAD ~ a media} to print or scan images, text, or {TAIL ~ other objects} 
A handheld printer or scanner implementing the device may thus be moved in different directions across { HEAD ~ a media } to print or scan images , text , or { TAIL ~ other objects }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH REL OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL