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 Color print/copy Colour printing Colour copying Colour scan Colour scanning HP OfficeJet CB023A, Thermal inkjet, Colour printing, 4800 x 1200 DPI, Colour copying, A4, Black, White HP OfficeJet CB023A. Print technology: Thermal inkjet, Printing: Colour printing, Maximum resolution: 4800 x 1200 DPI, Print speed (colour, normal quality, A4/US Letter): 19, 11. Copying: Colour copying, Maximum copy resolution: 1200 x 600 DPI. Scanning: Colour scanning, Optical scanning resolution: 2400 x 4800 DPI. Faxing: Colour faxing. Maximum ISO A-series paper size: A4. Wi-Fi. Product colour: Black, White