diff --git a/business/model/print.go b/business/model/print.go
index 667f7cb01..a0ff65f1a 100644
--- a/business/model/print.go
+++ b/business/model/print.go
@@ -21,6 +21,7 @@ type Printer struct {
 	PrintKey string `json:"print_key"`                   //打印机识别码
 	Name     string `json:"name"`                        //打印机备注名
 	Status   int    `json:"status"`                      //打印机状态
+	IsOnline int    `json:"is_online"`                   //1在线，0离线
 }
 
 func (v *Printer) TableIndex() [][]string {