Here is a set of EMPTY color OEM Hewlett Packard Introductory Toner Cartridges:
Compatible with the HP LaserJet Pro CM1415 and LaserJet Pro CP1525.
Cyan - CE321A (128A)
Yellow - CE322A (128A)
Magenta - CE323A (128A)
These are being sold for refilling purposes, not to use as-is.