T640TN
A network-ready twin of the base T640, the Lexmark T640TN shipped with Ethernet on board so IT departments could deploy it straight onto the office LAN. Under the hood it is the same durable engine with the same easy maintenance routine, drinking from the same 640H high-yield cartridge. That shared cartridge means one toner SKU serves both T640 variants in a mixed fleet. Compatible 640H toner drops your per-page cost on a printer that was already built to last a decade.
| Cartridge | Color | Page yield |
|---|---|---|
| 640H (64015HA / 64035HA) | Black | ~21,000 pages |
Frequently asked questions
Which toner does the Lexmark T640TN use?
The Lexmark T640TN uses the Lexmark 640H high-yield black toner cartridge (OEM 64015HA or 64035HA).
How many pages will one 640H cartridge print in the T640TN?
About 21,000 pages at 5% coverage (ISO/IEC 19752).
Will a compatible 640H cartridge damage my T640TN or void its warranty?
No. Compatible cartridges are built to OEM specifications and do not void your printer’s warranty.
What is the difference between the 64015HA and 64035HA cartridges for the T640TN?
The 64015HA is a Lexmark Return Program cartridge — sold at a lower price in exchange for returning the empty cartridge to Lexmark for recycling. The 64035HA is the regular version. Both print about 21,000 pages in the T640TN.