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 Epson WorkForce WF-3640DTWF, Inkjet, Cetakan berwarna, 4800 x 2400 DPI, A4, Cetakan langsung, Hitam Epson WorkForce WF-3640DTWF. Teknologi cetak: Inkjet, Cetakan: Cetakan berwarna, Resolusi maksimum: 4800 x 2400 DPI, Kelajuan cetak (warna, kualiti terbaik, A4/Surat AS): 20 ppm. Menyalin: Penyalinan berwarna. Imbasan: Pengimbasan berwarna, Resolusi imbasan optik: 1200 x 2400 DPI. Faks: Faks berwarna. Maximum ISO A-series paper size: A4. Wi-Fi. Cetakan langsung. Product color: Hitam