Office managers, listen up! This 1000g black toner refill will save you a ton on printing costs. Made for Konica Minolta Bizhub printers: 4000P, 4050, 4750, 3301P, 3300P, 3320, 4020, and 4700 models. Brand new from AAATONER, made right here in the USA. Laser printer compatible - not for inkjets! Perfect when your printer starts showing those 'low toner' warnings. Each bag gives you 1000 grams of high-quality black toner powder. Way more affordable than buying OEM cartridges. Instructions: You'll need to pour this into your existing toner cartridge - make sure to clean up any spills! Works great for high-volume printing in offices, schools, or print shops. No MPN needed - it's a universal refill for these models. No UPC either. Important: Wear gloves and maybe a mask when refilling - toner powder can get messy. Saves you money while keeping your Konica Minolta running smoothly. Ideal for businesses that go through toner like crazy. Keep printing without the crazy costs!