We recommend this machine BH500 is imported authentic black and white copier machine, 1G memory, transfer speed, high material LCD touch screen, print speed one minute 50, preheat 46 seconds, 5.1 seconds debut output, positive and negative Disposable copy scan speeds up to 70 times per minute, do not mix sizes scanning, continuous high-quality jobs, copy output speed of 50 / min, the first copy time of less than 3.6 seconds, warm-up within 15 seconds, the machine uses a simitri Toner can greatly reduce energy consumption, and thus effective cost savings. This machine [cost] [50 / min] [] [alternative modification upgrade powder does not block the machine stable powder] [] [save toner costs by more than 10%] [] [automatic duplex scanning black - in vain - Black [more] one output] continuous copy count: 1 (inclusive) -999 sheets (inclusive) in this welcome customers to visit the company cooperation, but also willing to be your most reliable long-term partner!