T642DTN
Built for departments that outgrew the T640, the Lexmark T642DTN packed duplex printing, a second input tray, and networking into one durable frame. Paper handling and toner capacity both scaled up to match the faster engine, keeping interventions rare. The 640H high-yield cartridge keeps pace with the heavier workload, reducing how often anyone thinks about supplies. Stock compatible 640H cartridges and this workhorse stays in the fast lane.
| Cartridge | Color | Page yield |
|---|---|---|
| 640H (64015HA / 64035HA) | Black | ~21,000 pages |
Frequently asked questions
Which toner does the Lexmark T642DTN use?
The Lexmark T642DTN uses the Lexmark 640H high-yield black toner cartridge (OEM 64015HA or 64035HA).
How many pages will one 640H cartridge print in the T642DTN?
About 21,000 pages at 5% coverage (ISO/IEC 19752).
Will a compatible 640H cartridge damage my T642DTN or void its warranty?
No. Compatible cartridges are built to OEM specifications and do not void your printer’s warranty.
Can I use a 640H cartridge bought for a T640 in my T642DTN?
Yes. The 640H family is shared across the Lexmark T640, T642, T644, X642, X644 and X646 series, so any 640H cartridge fits your T642DTN.