T644TN
Networking plus tray expansion made the Lexmark T644TN the shared-printing flagship of the T64x family. Whole departments could queue to it over the LAN while the extra tray kept paper flowing through peak periods. The 640H high-yield cartridge stretched months between changes even under constant shared use. Compatible 640H cartridges turn this top-tier shared printer into a genuinely low-cost asset.
| Cartridge | Color | Page yield |
|---|---|---|
| 640H (64015HA / 64035HA) | Black | ~21,000 pages |
Frequently asked questions
Which toner does the Lexmark T644TN use?
The Lexmark T644TN uses the Lexmark 640H high-yield black toner cartridge (OEM 64015HA or 64035HA).
How many pages will one 640H cartridge print in the T644TN?
About 21,000 pages at 5% coverage (ISO/IEC 19752).
Will a compatible 640H cartridge damage my T644TN 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 T644TN?
Yes — the 64015SA and 64035SA standard cartridges print about 6,000 pages, a good fit for lighter printing on the T644TN.