(1 Inktoneram Replacement toner cartridge to replace Okidata B4600/B4550 43502001 toner cartridge) These are the compatible replacement toner cartridges to replace the Okidata B4600/B4550 toner cartridges. The Replacement toner cartridges replace the original Okidata B4600/B4550 cartridges. Our compatible toner cartridges deliver documents with high quality details and clarity. Getting the compatible replacement toner cartridge for Okidata B4600/B4550 toner cartridges is a cost-effective choice that will provide you with best quality and reliability at great discounted price. Our compatible (ISO9001 certified) replacement toner cartridges are thoroughly tested and inspected to ensure OEM-equivalent yields and performance. The compatible toner cartridges to replace Okidata B4600/B4550 compatible toner cartridges are designed to work with: Okidata: B4600 B4600n B4550 B4550n. (THIS IS A COMPATIBLE REPLACEMENT PRODUCT ONLY. THIS IS NON-OEM .)