Hongxin Machinery Co.,LTD help you install the Videojet  photocell sensor encoder . First: Take the  connector from the Videojet printer . Secondly: Take apart the connector videojet printer Thirdly: link the colored  line  to the pin  A: Brown wire connect to NO.1 ,the first number (power supplier) B: Black wire to NO.2 ，the second number (signal line) C:Blue wire to NO.4,,the fourth number (to ground) D:Cut off the remaining wires and insutate them