diff --git a/business/jxstore/cms/print.go b/business/jxstore/cms/print.go
index 0ae704ff9..35a689ef8 100644
--- a/business/jxstore/cms/print.go
+++ b/business/jxstore/cms/print.go
@@ -119,7 +119,7 @@ func DelPrinter(appID int, printNos []string) (err error) {
 	return err
 }
 
-func UpdatePrinter(appID int, printNo, name, sim, sound string, volume int) (err error) {
+func UpdatePrinter(appID int, printNo string, name, sim, sound *string, volume *int) (err error) {
 	var (
 		db     = dao.GetDB()
 		fields []string
@@ -128,20 +128,20 @@ func UpdatePrinter(appID int, printNo, name, sim, sound string, volume int) (err
 	if printers, _ := dao.GetPrinters(db, appID, printNo); len(printers) == 0 {
 		return fmt.Errorf("该应用下未找到该打印机！print_no : %v", printNo)
 	} else {
-		if printers[0].Name != name {
-			printers[0].Name = name
+		if printers[0].Name != *name {
+			printers[0].Name = *name
 			fields = append(fields, "name")
 		}
-		if printers[0].SIM != sim {
-			printers[0].SIM = sim
+		if printers[0].SIM != *sim {
+			printers[0].SIM = *sim
 			fields = append(fields, "sim")
 		}
-		if printers[0].Sound != sound {
-			printers[0].Sound = sound
+		if printers[0].Sound != *sound {
+			printers[0].Sound = *sound
 			fields = append(fields, "sound")
 		}
-		if printers[0].Volume != volume {
-			printers[0].Volume = volume
+		if printers[0].Volume != *volume {
+			printers[0].Volume = *volume
 			fields = append(fields, "volume")
 		}
 		if _, err = dao.UpdateEntity(db, printers[0], fields...); err != nil {
diff --git a/controllers/api_controller.go b/controllers/api_controller.go
index a00b7f7d3..7879d3860 100644
--- a/controllers/api_controller.go
+++ b/controllers/api_controller.go
@@ -247,29 +247,38 @@ func (c *ApiController) DelPrinter(dataMap map[string]interface{}) (data, errCod
 //修改打印机信息
 func (c *ApiController) UpdatePrinter(dataMap map[string]interface{}) (data, errCode string, err error) {
 	var (
-		printNo, name, sim, sound string
-		appID, volume             int
-		ok                        bool
+		printNo          string
+		name, sim, sound *string
+		volume           *int
+		appID            int
 	)
 	globals.SugarLogger.Debugf("Begin API UpdatePrinter data: [%v]", utils.Format4Output(dataMap, false))
-	if _, ok = dataMap[keyPrintNo].(string); !ok {
+	if _, ok := dataMap[keyPrintNo].(string); !ok {
 		return buildParamErrCodeAndErr(keyPrintNo)
 	} else {
 		if printNo = dataMap[keyPrintNo].(string); printNo == "" {
 			return buildParamErrCodeAndErr(keyPrintNo)
 		}
 	}
-	if name, ok = dataMap[keyName].(string); !ok {
-		name = ""
+	if nameStr, ok := dataMap[keyName].(string); !ok {
+		name = nil
+	} else {
+		name = &nameStr
 	}
-	if sim, ok = dataMap["sim"].(string); !ok {
-		sim = ""
+	if simStr, ok := dataMap["sim"].(string); !ok {
+		sim = nil
+	} else {
+		sim = &simStr
 	}
-	if sound, ok = dataMap["sound"].(string); !ok {
-		sound = ""
+	if soundStr, ok := dataMap["sound"].(string); !ok {
+		sound = nil
+	} else {
+		sound = &soundStr
 	}
-	if volume, ok = dataMap["volume"].(int); !ok {
-		volume = 0
+	if volumeInt, ok := dataMap["volume"].(int); !ok {
+		volume = nil
+	} else {
+		volume = &volumeInt
 	}
 	appID = utils.Str2Int(dataMap[keyAppID].(string))
 	if err = cms.UpdatePrinter(appID, printNo, name, sim, sound, volume); err != nil {