Quickly complete documents. A3 large format printing: black and white print speed 23 pages / minute, print 600 * 600dpi optical resolution, first page output time is about 8.8 seconds, clear fonts let you easily complete document printing Switch A3 / A4 at will: Simple, intelligent and efficient, switch between A3 and A4 format, save effort and support A3 / A4 / A5 / B4 / B5 / oficio 216X 340 / 8K / 16K etc "0" second warm-up technology: use "0" warm-up technology to reduce energy consumption, improve office printing efficiency, and start quickly and easily. A4 black and white first page output only takes 8.8 seconds in sleep mode. Black and white 24.8 seconds and color 24.7 seconds