Conclusion: The HP Officejet Pro 8500 is the cheapest on a cost per page basis.
Canon imageCLASS MF4370dn Laser All-in-One
Sells for $299.00
It uses a laser cartridge Canon 104 cost $87.99 yield 2000 pages @ 4.4 cents per page
HP®LaserJet Pro M1212nf Multifunction Printer Cost $199.98 It uses HP CE285A Black Laser Toner Cartridge Cost $67.99 yield 1600 pages @ 4.25 cents per page.
Brother® MFC-7340 Laser Flatbed All-In-One
Priced at $199.99 Comes with a Brother TN 330 toner rated at 1500 pages and a DR360 drum.The toner can be replaced with a TN 360 cost $67.99 rated at 2600 pages @ 2.6 cents per page. A $100.00 12,000 page drum will also need replacing after 5 toners.
HPOfficejet Pro8500 All-in-OnePrinter
Price after savings: $199.98
HP 940XL (C4906AN) Black Ink Cartridge, High Yield
Price:$35.99 Yields up to 2,200 pages
Or 1.63 Cents per page