diff --git a/business/jxstore/event/event_tcp.go b/business/jxstore/event/event_tcp.go
index 0141c7d27..5506dc9e3 100644
--- a/business/jxstore/event/event_tcp.go
+++ b/business/jxstore/event/event_tcp.go
@@ -78,6 +78,8 @@ func (t *TcpClient) handleConn(c net.Conn) {
 			if t.Clients[printNo] == nil {
 				timeoutChan <- 1
 				t.addConn(c, printNo, status)
+				t.buildCallBackMap(printNo)
+				t.buildMsgMap(printNo)
 				t.HandleTcpMessages(printNo)
 				t.doPrint(printNo)
 				if status == printerStatusOnline {