Laser printers use a single drum, but may have more than one toner cartridge. Monochrome models use only black toner, and color laser printers have four cartridges: black, cyan, magenta and yellow.

HP ’s Neverstop laser printers are the first to use a refillable tank for the toner. That means no more expensive toner cartridges and, therefore, much lower per-page print costs — up to 60% ...

Instead of featuring traditional toner cartridges, the new HP Neverstop Laser printer utilizes what HP is calling a “toner tank.” Right out of the box, this tank can yield up to 10 times more ...