Amazon.com: ZIPRINT 4 Pack PC501 PC 501 Compatible with Brother PC501 Fax Cartridge with Roll for use in Brother FAX 575 Fax Printers (Black) : Office Products
Amazon.com: SPEEDYINKS Compatible Thermal Brother PC 501 Fax Cartridge PC501 PC-501 with Rolls Replacement to use in Brother FAX 575 FAX 878 Ribbon Printer (4-Pack, Black) : Office Products