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| Specification | EpsonLW-PX400 | EpsonC31CJ57096 |
|---|---|---|
| Automatic duplex output | NoSource | NoSource |
| Color capability | MonochromeSource | MonochromeSource |
| Declared print speed | 1 ipm or mppmSource | 38 ipm or mppmSource |
| Default sleep delay | 0 minSource | 0 minSource |
| ENERGY STAR partner | K-Sun CorporationSource | Epson America, Inc.Source |
| Marking technology | Thermal Transfer (TT)Source | Direct Thermal (DT)Source |
| Off-mode power | 0.03 WSource | 0.1 WSource |
| Page format class | SmallSource | SmallSource |
| Product type | PrintersSource | PrintersSource |
| Sleep-mode power | 0.55 WSource | 0.9 WSource |