HP LaserJet Magenta Developer Unit 5PN59A is a replacement developer kit for magenta printing in supported HP LaserJet equipment. HP’s service documentation identifies the kit as part 5PN59-67001 and lists magenta developer and powder among its contents.
The service documentation lists the LaserJet E786dn and E786z. A distributor also lists the LaserJet MFP E78625, E78630 and E78635, plus Flow MFP E78625, E78630 and E78635, as compatible models.
Its stated life is 400,000 A4/letter-equivalent simplex pages. Actual life can vary with the environment, usage, media type and average print-job size.