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| Specification | BrotherTD-4650TNWBR | BrotherQL-820NWBc |
|---|---|---|
| Automatic duplex output | NoSource | NoSource |
| Color capability | MonochromeSource | Not recorded |
| Declared print speed | 20 ipm or mppmSource | 6 ipm or mppmSource |
| Default sleep delay | 5 minSource | 0 minSource |
| ENERGY STAR partner | Brother Industries, Ltd.Source | Brother Industries, Ltd.Source |
| Marking technology | Direct Thermal (DT)Source | Direct Thermal (DT)Source |
| Off-mode power | 0.11 WSource | 0.14 WSource |
| Page format class | SmallSource | SmallSource |
| Product type | PrintersSource | PrintersSource |
| Sleep-mode power | 2.76 WSource | 0.78 WSource |