IC card sells meal system- Reads write card appear " Reads card a No. fail "

IC card sells meal system- - - > On studying writing card time appearance" Reads card a No. fail "

Settles means ——
1, Detection " System parameter setting " In reader/writer with computer copular serial port enactment;  
2, Detection " Card issue utensil password " Whethers for 's password same in card ( 12 passwords) ；