Compatible Dell 310-5402 Black MICR High Yield Toner Cartridge (6000 Page Yield) for Dell 1700 1710. MICR is an acronym for Magnetic Ink Character Recognition. MICR Cartridges are used for printing checks. Banks read magnetic ink differently than standard ink which allows them to reliably process checks. Magnetic Ink Recognition Toner; Regular toner mixed with IRON OXIDE particles recognized by scanning devises. Mainly used for Check printing and bar coding. Built with NEW drums and NEW components that match all ABA standards (American Bankers Association). Dell 1700 MICR Toner - Dell 1710 MICR Toner . This is a High Yield cartridge (don't confuse with the regular yield version sold by some retailers which is only 3 000 pages). For use in Dell 1700 1700n 1710 1710n laser printers. It replaces Part Number 310-5399 310-5400 310-5401 310-5402 U5698 N3769 X5011 Y5007 and Y5009.