The Winc Earth® TN251B Black Toner Catridge has a printing life of up to 2500 pages at 5% coverage and is compatible with the HP TN251B toner cartridge. Winc Earth® toner cartridges are designed to be a quality alternative to the OEM product whilst offering significant cost savings. They are produced via eco-preferable manufacturing processes and product components, including packaging made from recycled materials. Winc Earth® cartridges are certified to ISO 9001:2000 standards, which ensures high-quality printing with no spotting, smudging or fading.