Panasonic UG3309 Fax Toner Compatible Replacement | Castle Ink

ThePanasonic UG3309 remanufactured black toner cartridgefrom Castle Ink is a direct replacement for the OEM Panasonic UG3309, built for Panasonic Panafax, KX-FL and KX-MB multifunction fax/printers. Its an economical way to keep your printer in service without paying full OEM prices, while still meeting the print-quality standards your team expects.The UG3309 delivers dense, dark black for sharp text, line work and reliable bar-code scanning. Castle Ink uses finely ground monochrome toner with consistent particle size so output looks crisp at first print and stays consistent through the life of the cartridge. Every UG3309 is assembled with a fresh imaging chip (where applicable), color-balanced toner powder, then individually tested before shipping. Castle Ink backs every UG3309 with a100% satisfaction guarantee: if you arent happy with quality or yield, we replace or refund it.Compatible Panasonic PrintersPanasonic PANAFAX UF-744Panasonic PANAFAX UF-788Product SpecificationsSKU:UG3309OEM Reference:Panasonic UG3309Color:BlackCartridge Type:Remanufactured (non-OEM)Format:Laser TonerBrand Compatibility:PanasonicWarranty:Castle Ink 100% satisfaction guaranteeShipping:Free U.S. shipping; same-day dispatch on orders before 2pm ETFrequently Asked QuestionsWill the UG3309 void my Panasonic printer warranty?No. Under the U.S. Magnuson-Moss Warranty Act, your printer manufacturer cannot void your warranty solely because you installed a compatible (non-OEM) cartridge.How does print quality compare to the genuine Panasonic UG3309?The UG3309 is engineered to match the OEM cartridges particle size, charge profile and toner densities so day-to-day output should look essentially identical. If you ever see a difference, our satisfaction guarantee covers a free replacement or refund.How fast will my order ship?Orders placed before 2pm ET ship the same business day from our U.S. warehouse with free standard shipping. Expedited options are available at checkout.