diff --git a/controllers/api_controller.go b/controllers/api_controller.go
index d247310c8..e72473ed2 100644
--- a/controllers/api_controller.go
+++ b/controllers/api_controller.go
@@ -149,7 +149,7 @@ func (c *ApiController) CallOpenAPI() {
 		err = buildMethodParamErr()
 		goto end
 	}
-	globals.SugarLogger.Debugf("Begin API CallOpenAPI Method: %s, accessUUID:%s, sign:%s\n", method, accessID, sign)
+	globals.SugarLogger.Debugf("Begin API CallOpenAPI Method: %s, accessUUID:%s, sign:%s, params : %v \n", method, accessID, sign, utils.Format4Output(parms, true))
 	if err == nil {
 		result = routerMap[method].Call(parms)
 		if result[2].Interface() != nil {
@@ -263,6 +263,7 @@ func (c *ApiController) UpdatePrinter(dataMap map[string]interface{}) (data, err
 	volume = dataMap["volume"].(int)
 	appID = utils.Str2Int(dataMap[keyAppID].(string))
 	if err = cms.UpdatePrinter(appID, printNo, name, sim, sound, volume); err != nil {
+		globals.SugarLogger.Debugf("End API UpdatePrinter err: %v", err)
 		return "", model.ErrCodeGeneralFailed, err
 	}
 	return "", errCode, err