T640dn
Duplex and networking came standard on the Lexmark T640dn, the configuration most offices actually wanted from the T640 line. Double-sided printing cuts paper waste in half, while Ethernet sharing lets a whole workgroup use one dependable machine. The 640H cartridge keeps output costs low with its generous page capacity. For a T640dn still earning its desk space, compatible 640H toner is the economical way to keep it fed.
| Cartridge | Color | Page yield |
|---|---|---|
| 640H (64015HA / 64035HA) | Black | ~21,000 pages |
Frequently asked questions
Which toner does the Lexmark T640dn use?
The Lexmark T640dn uses the Lexmark 640H high-yield black toner cartridge (OEM 64015HA or 64035HA).
How many pages will one 640H cartridge print in the T640dn?
About 21,000 pages at 5% coverage (ISO/IEC 19752).
Will a compatible 640H cartridge damage my T640dn 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 T640dn?
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 T640dn.