| Product Program Category |
| Imaging Equipment |
Imaging Equipment |
| Type |
| Printers |
Printers |
| Brand Name |
| Lexmark |
Lexmark |
| Model Name |
| CS431dw |
CS730de |
| Model Number |
| CS431dw |
CS730de |
| UPC |
| 734646700962;734646700986;734646719988 |
734646717373;734646729208 |
| CB Model Identifier |
| ES_20290_4302020000000_0012663 |
ES_20290_4252022000000_0013171 |
| 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 |
| C2326,C2326,Same as tested model, sold in BSD Market; C3426dw,C3426dw,same as tested model, sold in Open Market |
C4342,C4342,same as tested model, sold in BSD market |
| Date Available On Market |
| April 20, 2020 |
April 25, 2022 |
| Date Certified |
| December 6, 2019 |
December 15, 2021 |
| Markets |
| United States, Switzerland, Taiwan, Canada |
United States, Switzerland, Taiwan, Japan, Canada |
| Professional Imaging Product |
| No |
No |
| Page Format Size |
| Standard |
Standard |
| Marking Technology |
| Electro-photographic (EP) |
Electro-photographic (EP) |
| Color Capability |
| Color |
Color |
| Print Speed (ipm or mppm) |
| 26 |
42 |
| Automatic Duplex Output Capable |
| Yes |
Yes |
| Typical Electricity Consumption (TEC) (kWh/wk) |
| 0 |
0.52 |
| Typical Electricity Consumption (TEC) (kWh/yr) |
| 18 |
27.04 |
| Default Delay Time to Sleep (minutes) |
| 15 |
15 |
| Date Qualified |
| December 6, 2019 |
December 15, 2021 |
