ENERGY STAR® is the government-backed symbol for energy efficiency, providing simple, credible, and unbiased information that consumers and businesses rely on to make well-informed decisions. ENERGY STAR is the simple choice for energy efficiency, making it easy for consumers and businesses to purchase products that save them money and protect the environment. ENERGY STAR The Blue Angel is the ecolabel of the federal government of Germany since 1978. The Blue Angel sets high standards for environmentally friendly product design and has proven itself over the past 40 years as a reliable guide for a more sustainable consumption. Blue Angel 戴尔 5310n, 激光, 1200 x 1200 DPI, A4, 50 ppm, O, 连网功能 戴尔 5310n. 打印技术: 激光. 打印墨盒数量: 1, 每月打印纸张数上限: 250000 页每月. 最大分辨率: 1200 x 1200 DPI. ISO A 系列文件最大尺寸: A4. 打印速度（黑色，一般质量，A4/US Letter）: 50 ppm, 双面印刷: O. 显示器: 液晶显示. 连网功能. 产品色彩: 黑色, 灰色