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 C11CC24001, 357 cps, 312 cps, 78 cps, Code 128 (A/B/C), Code 39, EAN13, EAN8, Interleaved 2/5, POSTNET, UPC-A, UPC-E, Manual, Envelopes, Labels, Plain paper, Roll Epson C11CC24001. Maximum print speed: 357 cps, Maximum print speed (draft): 312 cps, Maximum print speed (LQ): 78 cps. Paper feed: Manual, Paper tray media types: Envelopes, Labels, Plain paper, Roll. Buffer size: 128 KB, Sound pressure level (printing): 53 dB, Page description languages: Epson ESC/P2. Standard interfaces: Parallel, USB 2.0. Print head: 9-pin, Print head life: 400 million characters, Ribbon life: 4 million characters