NEC Superscript 660 Plus
NEC 20-090 cartridges are used in these printers:
NEC LCR 50 X, NEC Superscript 600 Plus, NEC Superscript 660 Plus, Sharp Fax FO-4500, Sharp Fax FO-4550, Sharp Fax FO-5500, Sharp Fax FO-5600, Sharp Fax FO-6500, Sharp FO 4500, Sharp FO 5500, Sharp FO 5600, Sharp FO 6500, Sharp FO 6550, Sharp FO 6600, Sharp FO 6650, Sharp FO 7500, Sharp UX 5000,