OEM Part # UG-5530 UG-5540 Panasonic Compatible TONER CARTRIDGE COLOR BLACK Yields up to 5,000 pages Mfr's # UG5530 UG5540 UG-5530 UG-5540 UG 5530 UG 5540. Compatible Models: Panasonic Panafax UF-7000 UF7000 UF 7000 Panasonic Panafax UF-8000 UF8000 UF-8000 Panasonic Panafax UF-9000 UF9000 UF 9000 Replaced by Panasonic UG-3340 laser toner cartridge