Panasonic splits its fax consumables between two families. KX-FA numbers such as KXFA83 toner, KXFA84 drum unit, KXFA133, KXFA135 and KX-FA65 serve the desktop fax and multifunction range, while UG codes like UG3202, UG3204, UG5510, UG5515 and UG5540 cover the Panafax office machines. UG3313 is listed as a combined toner, developer and drum kit.
Toner, Drum or Both
On most Panasonic models the toner cartridge and the drum are ordered separately, so a KXFA83 and a KXFA84 are a matched pair rather than alternatives. High yield versions of the UG5540 are listed, and a compatible version of that number appears alongside the standard one.
