Quick tech specs
- Black
- for Lexmark T640
- 644
- MICR toner cartridge (equivalent to: Lexmark 64037HR)
- 642
Know your gear
TROY Precision MICR Toner Secure cartridges have been modified to assure quality printing and reliability using TROY MICR Toner Secure toner. To increase security, the MICR toner is enhanced with a patented formulation that produces a red stain when chemical alteration is attempted.