supply and installation of office xerox machine of following category , 1 ) supply and installation of office xerox machineof following category digital photocopier hp laser jet mfp m436nda a3 size, mono copier machine 1 ) up to 23 ppm a4 black 2 ) automatic two-sided printing ( m436nda ) 3 ) original hp toner cartridges 4 ) up to 50% less paper 5 ) hi-speed usb 2.0 printing port ( 1 nos ) 2 ) supply and installation of office printer of following category hp laserjet pro mfp m126a 1 ) a4 black and white laser multifunction printer, perfect for enterprise 2 ) print, copy and scan 3 ) print speed up to 21 ppm ( black ) 4 ) usb ( 1 nos )