Reuse a HP cartridge core, replace the HP toner with bio-based, eco toner and what you have are HP bio black toner cartridges that are ideal for end-users desiring to go green to promote green initiatives. That said, we are pleased to offer AgriTone, HP cartridges that are compatible, bio-based, biopreferred and eco friendly. AgriTone replacement toner replaces petroleum based resin found in original HP toner cartridges using petroleum based resin. These bio-based cartridges, contain bio black, a toner containing a "significant" concentration of biobased resin. The resins used to create the HP compatible black toner are made with natural oils from American crops such as soy beans, corn and cotton seed, all renewable resources that are readily available and sustainable long-term. The use of green materials and bio content hold distinct advantages including - increasing energy independence by alleviating the need for petroleum products and spurring economic development by increasing demand for existing agricultural products while supporting local agriculture by following recommendations promoted by the USDA and the 2008 Farm Bill. Additionally, eco toner is naturally low in VOCs (volatile organic compounds that evapoate and react to sunlight) and its usage can reduce emissions causing air pollution. Using this HP compatible bio toner improves the environment because the mill manufacturing these cartridges reuses existing HP cartridge cores that may otherwise find their way into landfills. AgriTone, bio-based toner cartridges boast the imaging industry's highest concentration of bio content according to independent third-party testing, while still providing the same quality found in traditional HP toner cartridges because they are produced in a ISO 9001 and STMC Certified company. (IS0 9001 compliance guarantees that producing a quality product is of the companys utmost concern and that a quality management process is in place. A STMC compliant company insures that the company manufacturing the product meets all product and quality control testing criteria as set forth by The Standard Test Methods Committee. Recognition by this committee assures customers that tests used to evaluate these products are carried out in a systematic, professional manner and that testing results are reliable and factual). Promote green intiatives and use our unique line of bio toner cartridges designed for use in select HP network printers. Enjoy free UPS or FedEx Ground from our strategically located distribution facilities in California, Colorado, Florida, Pennsylvania and Texas. A one year warranty accompanies each HP compatible cartridge. Our initial offering of bio black, bio toner is on compatible HP toner cartridges. Additional bio black, bio toner products will be released as time progresses. No modifications are required to an existing HP printer in order to use these unique HP compatible, bio black, bio-based, eco cartridges. The soy, corn and cotton seed based ink will still meet your high print expectations. (Currently, further tests are being conducted on the following HP printers, where we hope to see bio-based products released soon: HP 8100, WX, HP 4000 and HP 4100. Each box used to ship a AgriTone eco toner cartridge is comprised of over 40% recycled material, while packaging paper contains over 20% recycled material, containing no harsh chemicals that are associated with depletion of the ozone layer. Shop our online store for terrific deals on a HP, compatible, bio-based and eco friendly, black toner cartridges