Hi James
hp laserjet need additional fonts for bar code. documentation is generaly supplied with it.
ie : hp ocr + barcode font base modul simm. With this product, for print a 2/5 interlevead cod bar you print :
esc(10Qesc(s1p36v0s0b13000T
esc(10Q : selection of the symbol set
esc(s1p14v0s0b13000T : selection of code 2/5 interlevead 36 point "36v"
This sequence is probably product dependent.
Joel