T644n
The Lexmark T644n delivered flagship T-series speed to networked workgroups, Ethernet included for easy sharing across the office. Its faster engine still sips from the familiar 640H high-yield cartridge, keeping supplies simple across mixed T64x fleets. One cartridge type for every speed class means less inventory to manage. Compatible 640H toner keeps a T644n running at its best price per page.
| Cartridge | Color | Page yield |
|---|---|---|
| 640H (64015HA / 64035HA) | Black | ~21,000 pages |
Frequently asked questions
Which toner does the Lexmark T644n use?
The Lexmark T644n uses the Lexmark 640H high-yield black toner cartridge (OEM 64015HA or 64035HA).
How many pages will one 640H cartridge print in the T644n?
About 21,000 pages at 5% coverage (ISO/IEC 19752).
Will a compatible 640H cartridge damage my T644n or void its warranty?
No. Compatible cartridges are built to OEM specifications and do not void your printer’s warranty.
Is there a lower-yield 640 cartridge for light use in the T644n?
Yes — the 64015SA and 64035SA standard cartridges print about 6,000 pages, a good fit for lighter printing on the T644n.