diff --git a/business/jxstore/event/event_tcp.go b/business/jxstore/event/event_tcp.go
index 81171347e..6a5c4d3a4 100644
--- a/business/jxstore/event/event_tcp.go
+++ b/business/jxstore/event/event_tcp.go
@@ -193,20 +193,22 @@ func handleConn(c net.Conn) {
 			printNo = string(printNoData)
 			globals.SugarLogger.Debugf("handleConn printno :[%v]", printNo)
 			status := printStatus2JxStatus(data[len(data)-8 : len(data)-6])
-			tcpClient.s.Lock()
 			if tcpClient.Clients[printNo] == nil {
 				printInfo := &PrintInfo{
 					C:          c,
 					Status:     printStatus2JxStatus(data[len(data)-8 : len(data)-6]),
 					StatusTime: time.Now(),
 				}
+				tcpClient.s.Lock()
 				tcpClient.Clients[printNo] = printInfo
+				tcpClient.s.Unlock()
 				changePrinterStatus(printNo, status)
 				if status > 0 {
 					printFail()
 				}
 			} else {
 				//改变打印机状态
+				tcpClient.s.Lock()
 				changePrinterStatus(printNo, status)
 				if tcpClient.Clients[printNo] != nil {
 					if tcpClient.Clients[printNo].Status != status {
@@ -214,8 +216,8 @@ func handleConn(c net.Conn) {
 					}
 					tcpClient.Clients[printNo].StatusTime = time.Now()
 				}
+				tcpClient.s.Unlock()
 			}
-			tcpClient.s.Unlock()
 		} else if strings.Contains(data, printText) {
 			globals.SugarLogger.Debugf("handleConn print: %v", data)
 			changePrintMsg(data)
@@ -407,7 +409,9 @@ func HandleCheckTcpHeart() {
 		tcpClient.s.Unlock()
 		for _, v := range keys {
 			changePrinterStatus(v, printerStatusOffline)
-			delete(tcpClient.Clients, v)
+			if tcpClient.Clients[v] != nil {
+				delete(tcpClient.Clients, v)
+			}
 		}
 	}
 }