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 2 paper trays 2 Colour scan Colour scanning Laser technology Laser HP LaserJet M521dn, Laser, Pencetakan mono, 1200 x 1200 DPI, Penyalinan mono, A4, Kelabu HP LaserJet M521dn. Teknologi cetak: Laser, Cetakan: Pencetakan mono, Resolusi maksimum: 1200 x 1200 DPI. Menyalin: Penyalinan mono, Resolusi salinan maksimum: 600 x 600 DPI. Imbasan: Pengimbasan berwarna, Resolusi imbasan optik: 1200 x 1200 DPI. Faks: Faks mono. Maximum ISO A-series paper size: A4. Product color: Kelabu