| Product Program Category |
| Imaging Equipment |
Imaging Equipment |
| Type |
| Multifunction Devices (MFD) |
Printers |
| Brand Name |
| Lexmark |
Lexmark |
| Model Name |
| MX331adn |
CS431dw |
| Model Number |
| MX331adn |
CS431dw |
| UPC |
| 734646695664;734646720496 |
734646700962;734646700986;734646719988 |
| CB Model Identifier |
| ES_20290_4302020000000_0012643 |
ES_20290_4302020000000_0012663 |
| Meets ENERGY STAR Most Efficient 2024 Criteria |
| No |
No |
| ENERGY STAR Partner |
| Lexmark International, Inc. |
Lexmark International, Inc. |
| Product Category |
| Imaging Equipment |
Imaging Equipment |
| Additional Model Information |
| MX331dn,MX331dn,Same as tested model, but without fax |
C2326,C2326,Same as tested model, sold in BSD Market; C3426dw,C3426dw,same as tested model, sold in Open Market |
| Date Available On Market |
| April 20, 2020 |
April 20, 2020 |
| Date Certified |
| October 7, 2019 |
December 6, 2019 |
| Markets |
| United States, Switzerland, Taiwan, Canada |
United States, Switzerland, Taiwan, Canada |
| Professional Imaging Product |
| No |
No |
| Page Format Size |
| Standard |
Standard |
| Marking Technology |
| Electro-photographic (EP) |
Electro-photographic (EP) |
| Color Capability |
| Monochrome |
Color |
| Print Speed (ipm or mppm) |
| 40 |
26 |
| Automatic Duplex Output Capable |
| Yes |
Yes |
| Typical Electricity Consumption (TEC) (kWh/wk) |
| 0 |
0.34 |
| Typical Electricity Consumption (TEC) (kWh/yr) |
| 22 |
17.68 |
| Default Delay Time to Sleep (minutes) |
| 15 |
15 |
| Date Qualified |
| October 7, 2019 |
December 6, 2019 |
