diff --git a/main.go b/main.go
index a3f3b677c..cfcc3443b 100644
--- a/main.go
+++ b/main.go
@@ -198,8 +198,8 @@ func handleConn(c net.Conn) {
 		lenData := int64(len(str) + len(const1) + len(orderNo) + len(printInit) + len(voice) + 1 + 2 + len(printData))
 		x1, x2 := int2h8l8(lenData)
 		data := const1 + x1 + x2 + orderNo + printInit + voice + printData + check
-		n2, err := c.Write([]byte(data))
-		fmt.Println("write data: ", hex.EncodeToString(buffer[:n2]))
+		c.Write([]byte(data))
+		fmt.Println("write data: ", data)
 	}
 }