diff --git a/business/jxstore/event/event_tcp.go b/business/jxstore/event/event_tcp.go
index 3cebbabce..13a432b46 100644
--- a/business/jxstore/event/event_tcp.go
+++ b/business/jxstore/event/event_tcp.go
@@ -180,11 +180,13 @@ func HandleTcpMessages() {
 
 func changePrinterStatus(db *dao.DaoDB, printNo string, status int) (err error) {
 	var (
-		printer = &model.Printer{
-			PrintNo: printNo,
-		}
+		printer = &model.Printer{}
 	)
-	if err = dao.GetEntity(db, printer, "PrintNo"); err == nil {
+	sql := `
+		SELECT * FROM printer WHERE print_no = ?
+	`
+	sqlParams := []interface{}{printNo}
+	if err = dao.GetRow(db, printer, sql, sqlParams); err == nil {
 		if printer.ID != 0 {
 			if printer.Status != status {
 				dao.UpdateEntity(db, printer, "Status")