The folowing is a toner cost comparison of HP's three business workgroup monochrome printers. The HP P4510 and P4015 series both use the CC364X Black Print Cartridge.
HP LaserJet P4510 Printer series - Models
Starting at: $ 1,599.00 Monthly duty cycle: Up to 275,000 pages
Black (best): Up to 62 ppm
HP LaserJet P4015n Printer (CB509A)
Print speed, black (normal quality mode) Up to 52 ppm
Monthly duty cycle Up to 225,000 pages
Both of the above use HP LaserJet CC364X Black Print Cartridge (CC364X) Price: $303.99*Average cartridge yields 24000 standard pages, 1.27 cents per page
HP LaserJet Enterprise P3010
Print speed, black (normal quality model Up to 42 ppm
Monthly duty cycle Up to 100,000 pages
The P3010 uses a HP 55X CE255X LaserJet Toner Cartridge, black. Average cartridge yields 12,500 standard pages.
Price: $223.99* 1.79 cents per page
The difference in toner cost of 0.52 cents per page amounts to $52 after a couple cases of paper.