These products are guaranteed to work with your Sharp UXB20 printer.
Sharp UXC70B Remanufactured Black Fax Cartridge More...
It comes with model number as UX-B20 and is manufactured by sharp. It uses plain paper for faxing and has monochrome printing technology of ink jet type and has a standard memory of 448 KB. Its document feeder has a capacity of 10 sheets and can handle maximum copying size of 8.5 inches x 14 inches. Its weight is 7.1 lbs. Its fax machine has a feature maximum transmission speed of 9.6 kbps. It supports corded handset type. It handles media types of 8.5 inches x 11 inches.