diff --git a/business/jxstore/event/event_tcp.go b/business/jxstore/event/event_tcp.go
index 7d7dc7653..720e79162 100644
--- a/business/jxstore/event/event_tcp.go
+++ b/business/jxstore/event/event_tcp.go
@@ -22,10 +22,7 @@ func ListenTcp() {
 		return
 	}
 	globals.SugarLogger.Debugf("begin listenTcp port 8000......")
-	//go t.HandleTcpMessages()
 	go t.HandleCheckTcpHeart()
-	//go t.doPrint2()
-	//go t.doPrint(printMsgChanFail)
 	for {
 		c, err := l.Accept()
 		if err != nil {
@@ -90,7 +87,6 @@ func (t *TcpClient) handleConn(c net.Conn) {
 				t.setPrintStatus(printNo, status)
 			}
 			globals.SugarLogger.Debugf("handleConn print model %v", utils.Format4Output(t.Clients[printNo], true))
-			//}
 		} else if strings.Contains(data, printText) {
 			globals.SugarLogger.Debugf("handleConn print callback: %v", data)
 			_, printNo = getCallbackMsgInfo(data)
@@ -238,9 +234,7 @@ func (t *TcpClient) HandleCheckTcpHeart() {
 		for _, v := range keys {
 			changePrinterStatus(v, printerStatusOffline)
 			if t.isExist(v) {
-				t.Lock()
-				delete(t.Clients, v)
-				t.Unlock()
+				t.clear(v)
 			}
 		}
 	}
diff --git a/business/jxstore/event/event_tcp_utils.go b/business/jxstore/event/event_tcp_utils.go
index f84b47bcf..f00768948 100644
--- a/business/jxstore/event/event_tcp_utils.go
+++ b/business/jxstore/event/event_tcp_utils.go
@@ -93,7 +93,6 @@ const (
 )
 
 var (
-	//t = &TcpClient{}
 	printErrMap = map[string]string{
 		printErrWithoutPaper: "打印机缺纸！",
 	}
@@ -107,9 +106,6 @@ var (
 	regexpQrr   = regexp.MustCompile(byteSignQrRight + "(.*?)" + byteSignQrRightE)
 	regexpSound = regexp.MustCompile(byteSignSound + "(.*?)" + byteSignSoundE)
 
-	//printMsgChan = make(chan *model.PrintMsg, 1024)
-	//printMsgCallbackMap = make(map[string]chan string, 1024)
-	//printMsgChanFail = make(chan *model.PrintMsg, 1024)
 	timeoutChan = make(chan int, 10)
 )
 
@@ -171,7 +167,7 @@ func (t *TcpClient) buildCallBackMap(key string) {
 func (t *TcpClient) getPrintStatus(key string) int {
 	t.RLock()
 	defer t.RUnlock()
-	if t.isExist(key) {
+	if t.Clients[key] != nil {
 		return t.Clients[key].Status
 	} else {
 		return printerStatusOffline
@@ -181,7 +177,7 @@ func (t *TcpClient) getPrintStatus(key string) int {
 func (t *TcpClient) getPrintConn(key string) net.Conn {
 	t.RLock()
 	defer t.RUnlock()
-	if t.isExist(key) {
+	if t.Clients[key] != nil {
 		return t.Clients[key].C
 	} else {
 		return nil
@@ -248,6 +244,17 @@ func (t *TcpClient) addCallbackChan(key, data string) {
 	t.CallBackMap[key] <- data
 }
 
+func (t *TcpClient) clear(key string) {
+	t.Lock()
+	defer t.Unlock()
+	t.Clients[key].C.Close()
+	delete(t.Clients, key)
+	close(t.MsgMap[key])
+	delete(t.MsgMap, key)
+	close(t.CallBackMap[key])
+	delete(t.CallBackMap, key)
+}
+
 func NewTcpClient() *TcpClient {
 	t := &TcpClient{
 		Clients:     make(map[string]*PrintInfo),