* When you try our compatible HP c8842a versatile black ink cartridge, the first thing you will notice is that the ink performs better than a OEM, c8842a, cartridge because the image will print darker * This specialty ink, we call "Turbo Black" ink and it has been proven effective on Kirk Rudy Netjet and W'Inkjet high speed, high volume mail addressing systems, as well as equipment such as: AstroJet, Bryce 30k, MCS, Prism, Surefeed, and some Videojet machines. Pitney Bowes AddressRight mail system models: da400, da500, da50s, da550, da55s, da700, da750, da75s, da80f, da900, da950, da95f, w660, w680, w790 and w990 will, additionally, benefit from using this ink * This specialty dark ink, printing darker than a OEM, HP c8842a, versatile ink cartridge is offered in a remanufactured HP 45 cartridge * It has been designed for use on porous paper,coated paper, excluding aqueous stock, and Tyvek * It is an intensely dark, dye and water based ink * Use at 150 - 200 dpi, or draft mode, uses less ink per output and provides almost twice the impressions of a c8842a cartridge at 300 dpi. In other words, our ink performs like HP c8842a ink on steroids, making it a superb versatile ink * A dryer is recommended to 600 dpi * As with any fast drying ink, to insure optimum performance, please reclip your print heads when they are not in use and use a lint-free cloth and alcohol to clean your cartridge print heads. Use of paper towels, or a cotton cloth, is strictly prohibited as lint will clog print heads and all warranties will become void * We offer competitive pricing on this reliable and compatible inkjet cartridge, so please bookmark this page as a reminder to purchase versatile black ink from our online store. We value you as a customer and we want to be your one stop to shop for mailroom equipment ink * 42ml * 180 day warranty * Made in America * Free shipping - UPS Ground from TN * Professionally cleaned, refilled and post tested so as to insure optimal performance * Upcharges will apply if faster freight is required * Inquire for a quotation over 500 pieces * US SALES ONLY