diff --git a/business/jxstore/event/event_tcp.go b/business/jxstore/event/event_tcp.go
index f2329631a..81171347e 100644
--- a/business/jxstore/event/event_tcp.go
+++ b/business/jxstore/event/event_tcp.go
@@ -420,7 +420,7 @@ func buildMsg(printMsg *model.PrintMsg) (data []byte, err error) {
 		const1    = "0200ff50"
 		printInit = "1b40" //打印机初始化
 		//voice     = "1d6b401dfd001a01015b7631365d736f756e64622cc4fad3d0d0c2b6a9b5a5c0b1" //语音，中国
-		check = "ff"
+		check = "aa"
 		//qr                                  = "1d58021b5a0001061600747470733a2f2f7777772e62616964752e636f6d2f1b000A0A0A1B40"
 		orderNoHexH, orderNoHexL, printData string
 	)