打印機
    aas(automatic area seagment?)
    dpi(dot per inch，每英寸的打印像素)
    ecp(extended capabilities port，延長能力端口)
    epp(enhanced parallel port，增強形平行接口)
    ipp(internet printing protocol，因特網(wǎng)打印協(xié)議)
    ppm(paper per minute，頁/分)
    spp(standard parallel port，標準并行口)
    tet(text enhanced technology，文本增強技術)
    usbdcdpd(universal serial bus device class definition for printing devices，打印設備的通用串行總線級標準)
    vd(variable dot，變點式列印)