Lexmark X950 Technical Reference - Page 18
Printer specifications, Airflow requirement, Noise emission levels
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Printer specifications 18 Printer specifications Airflow requirement The room should meet ASHRAE 62-1989 standards. Noise emission levels The following measurements were made in accordance with ISO 7779 and reported in conformance with ISO 9296. 1-meter average sound pressure, dBA Status C950 X950 X952 Idle/Ready 22 24 24 Printing (simplex) 53 52 52 Printing (duplex) 54 54 54 ADF Mono Scan Not applicable 55 55 ADF Mono Copy Not applicable 55 55 ADF Color Scan Not applicable 54 54 ADF Color Copy Not applicable 52 52 Note: Measurements apply to 300‑, 600‑, and 1200‑dpi printing. X954 24 53 55 54 55 53 53 Declared sound power level, bels Status C950 X950 X952 Idle/Ready 4.3 4.2 4.2 Printing (simplex 7.0 mono) 6.9 6.9 Printing (simplex color) 6.9 6.9 6.9 Printing (duplex) 7.0 7.1 7.1 ADF Mono Scan Not applicable 7.1 7.1 ADF Mono Copy Not applicable 7.1 7.1 ADF Color Scan Not applicable 7.0 7.0 ADF Color Copy Not applicable 7.0 7.0 Note: Measurements apply to 300‑, 600‑, and 1200‑dpi printing. X954 4.2 7.0 6.9 7.2 7.1 7.1 7.1 7.0