diff --git a/business/jxstore/event/event_tcp.go b/business/jxstore/event/event_tcp.go
index 8e43c34ab..892d599e2 100644
--- a/business/jxstore/event/event_tcp.go
+++ b/business/jxstore/event/event_tcp.go
@@ -335,9 +335,9 @@ func buildMsg(printMsg *model.PrintMsg) (data []byte, err error) {
 	printDataGBK, _ := jxutils.Utf8ToGbk([]byte(content))
 	printData = hex.EncodeToString(printDataGBK)
 	printData = replaceContent(printData)
-	lenData := int64(len(str) + len(const1) + len(orderNoHexH) + len(orderNoHexL) + len(printInit)*2 + len(check) + 4 + len(printData))
+	lenData := int64(len(str) + len(const1) + len(orderNoHexH) + len(orderNoHexL) + len(printInit)*2 + len(check) + 6 + len(printData))
 	x1, x2 := int2h8l8(lenData / 2)
-	dataStr := str + x1 + x2 + const1 + orderNoHexH + orderNoHexL + printInit + printData + printInit + check
+	dataStr := str + x1 + x2 + const1 + orderNoHexH + orderNoHexL + printInit + printData + "0a" + printInit + check
 	return jxutils.Hextob(dataStr), err
 }