Kyocera TK421 | 370AR011 | Original Kyocera TK-421 Toner Cartridge - Black Was: Now: $57.99 MSRP: $88.70 The Original Kyocera TK421 (370AR011) Black toner cartridge and included waste toner collector provides reliable highquality laser prints with page yields up to 15,000 pages at 5% coverage.Using Genuine Kyocera TK421 Black Toner means the highest quality... Add to Cart