Lexmark offers the C792 color laser printer and the X792 multifunction version that use four all-in-one toner cartridges. These cartridges have both a lower and upper hopper, and separate toner loads are required no matter what yield you are remanufacturing.
Replacement toner cartridges are available in 6,000 page standard yield and 20,000 page high yield versions that require a chip for correct printer operation.