... 's really what you see what you get;4. Dot matrix: standard figure: 5×7,16×16, letters: 5×7 or ... exchange chip or connect to computer or use special software;6. Print lines: 1-4(5×7)( 1-4lines);7. Less ... theory)5.Wiring speed2m/sec (5*7 dot matrix)6.Printing direction360 degree full direction printing7.Suitable materialPaper,plastic, metal, ...