Question : Problem: Which high-yield Lexmark toner cartridge is compatible with the Dell MFP 1600n laser printer?

The question title pretty much says it all.  I don't want to wait the 3 - 5 days to get it from Dell and local suppliers carry Lexmark toner. From what I understand, Dell printers are simply rebranded Lexmark. So what's the proper compatible high-yield toner cartridge and part number?

Answer : Problem: Which high-yield Lexmark toner cartridge is compatible with the Dell MFP 1600n laser printer?

Sorry, that was not for the 1600 but this one is lol.

Dell 1600n 5,000 Pg High Yield Toner Cartridge

The 5,000 page High Yield Toner Cartridge from Dell is a high yield cartridge designed for the Dell MFP 1600n Laser Printer.

High-resolution produces sharp images and text
Designed to work with the Dell MFP Laser Printer 1600n
Supports the Dell Toner Management System for low toner detection and easy online ordering
Cartridge Color: Black
Cartridge Included Qty: 1
Yield: Up to 5,000 pages2
Printer Technology: Laser
Product Type: Printer toner cartridge
Warranty3: Lifetime limited warranty4

http://www.dell.com/content/products/productdetails.aspx/print_1600n?c=us&cs=04&l=en&s=bsd&~tab=servicetab