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| Specification | EpsonC31CJ27021 | EpsonC31CJ52001 |
|---|---|---|
| Automatic duplex output | NoSource | NoSource |
| Color capability | MonochromeSource | MonochromeSource |
| Declared print speed | 19 ipm or mppmSource | 13 ipm or mppmSource |
| Default sleep delay | 0 minSource | 0 minSource |
| ENERGY STAR partner | Epson America, Inc.Source | Epson America, Inc.Source |
| Marking technology | Direct Thermal (DT)Source | Direct Thermal (DT)Source |
| Off-mode power | 0.1 WSource | 0.1 WSource |
| Page format class | SmallSource | SmallSource |
| Product type | PrintersSource | PrintersSource |
| Sleep-mode power | 0.8 WSource | 0.8 WSource |