We offer High Quality Laser Toner Cartridges for your IBM Network Printer 12. Every Compatible High Yield Toner Cartridge we offer for your IBM Network Printer 12 is manufactured in an ISO9001 certified factory. The Retail markup on IBM Toners is substantial in comparison to most other brands. Our IBM compatible brand can save you up to 75% OFF the retail brand (OEM). Most of our printer cartridges for your IBM Network Printer 12 are High-Yield, which means they allow for a greater amount of prints than a normal toner cartridge.