| Print speed: | 50 ppm |
| Print resolution: | 1200x1200 dpi |
| Recommended monthly volume: | 300,000 pages |
| Memory: | 256 MB, up to 768 MB |
| Duplex printing: | Standard |
| Paper handling: |
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| Interface: |
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| OS compatibility: |
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| Dimensions: | 18.7 x 24.3 x 20.5 in. |
Toner Cartridges, Maintenance Kits and Parts

16 Items
Black Genuine Toner Cartridge Standard Yield, 30,000 pages
Genuine Fuser Unit 300,000 pages, 110 volt
Genuine Feed Unit Roll Kit
Genuine Fuser Maintenance Kit 100 volt
Genuine Fuser Maintenance Kit 220 volt
Genuine Multipurp Pick Roll KIT
Genuine Transport Roller KIT
Genuine Registration Roll Asmbly
Genuine 2tm/ttm Drive Motor
Genuine Duplex Media Transport Roll KIT
Genuine Transport Roller KIT
Genuine Fuser
Genuine Fuser Standard Yield, 300,000 pages
Genuine Fuser Standard Yield, 300,000 pages
The W840dn uses LEX W84020H toner cartridge. LEX W84020H yields 30000 pages.
The LEX W84020H cartridge has an approximate yield of 30000 pages.
Yes — the replacement fuser for the W840dn is: LEX 40X0647N, LEX 40X0958, LEX 40X0957, LEX 40X0646, LEX 40X0648, LEX 40X5985.
"Supply Problem" on the W840dn is most often a chip-read issue. Power off for 30 seconds to reset the printer's memory, reseat the cartridge, and wipe the contact strip with a dry cloth (never anything damp). If the alert won't clear, replace it with LEX W84020H or get in touch with support.