diff --git a/src/main/java/org/aohe/control/Operational.java b/src/main/java/org/aohe/control/Operational.java
index 9312143..c1f57bf 100644
--- a/src/main/java/org/aohe/control/Operational.java
+++ b/src/main/java/org/aohe/control/Operational.java
@@ -19,6 +19,8 @@ public class Operational {
     //是否使用系统UI
     private static Boolean isSystemUI = false;
 
+    private static JSONObject settings = new JSONObject();
+
     public static String selectOperational(String path) {
         JSONObject json = JSONObject.parse(path);
 
@@ -181,28 +183,30 @@ public class Operational {
      * @return R
      */
     public static R setDeviceOperations(JSONObject map){
-        try {
-            TwainSource twainSource = Twain.getSourceManager().getSource();
-            // 先约定为三种参数 DPI,色彩模式,进纸模式
-            if(map.get("dpi") !=null){
-                twainSource.setResolution(map.getDouble("dpi"));
-            }
-            if(map.get("color") !=null){
-                twainSource.setCapability(Twain.ICAP_PIXELTYPE, map.getInteger("color"));
-            }
-            if(map.get("paper") !=null){
-                twainSource.setCapability(Twain.CAP_FEEDERENABLED, map.getBooleanValue("paper"));
-            }
-            if(map.get("duple") != null){
-                twainSource.setCapability(Twain.CAP_DUPLEXENABLED, map.getBooleanValue("duple"));
-            }
-            if(map.get("systemUI") != null){
-                isSystemUI = map.getBooleanValue("systemUI");
-            }
+//        try {
+//            TwainSource twainSource = Twain.getSourceManager().getSource();
+//            // 先约定为三种参数 DPI,色彩模式,进纸模式
+//            if(map.get("dpi") !=null){
+//                twainSource.setResolution(map.getDouble("dpi"));
+//            }
+//            if(map.get("color") !=null){
+//                twainSource.setCapability(Twain.ICAP_PIXELTYPE, map.getInteger("color"));
+//            }
+//            if(map.get("paper") !=null){
+//                twainSource.setCapability(Twain.CAP_FEEDERENABLED, map.getBooleanValue("paper"));
+//            }
+//            if(map.get("duple") != null){
+//                twainSource.setCapability(Twain.CAP_DUPLEXENABLED, map.getBooleanValue("duple"));
+//            }
+//            if(map.get("systemUI") != null){
+//                isSystemUI = map.getBooleanValue("systemUI");
+//            }
+//
+//        } catch (TwainException e) {
+//            throw new RuntimeException(e);
+//        }
+        settings.putAll(map);
 
-        } catch (TwainException e) {
-            throw new RuntimeException(e);
-        }
         return R.ok();
     }
 
@@ -226,8 +230,8 @@ public class Operational {
      */
     public static R startScan(String name, boolean systemUI ) {
         Source source = new Source();
+        initSettings(source);
         source.setName(name);
-        source.setSystemUI(systemUI);
         List<File> fileList = source.scan();
         List<String> base64Files = new ArrayList<>();
         for (File file : fileList){
@@ -236,6 +240,31 @@ public class Operational {
         return R.ok(base64Files);
     }
 
+    private static void initSettings(Source source) {
+        if(settings.get("dpi") !=null){
+            source.setDpi(settings.getDouble("dpi"));
+        }
+        if(settings.get("color") !=null){
+            Integer color = settings.getInteger("color");
+            if (color == 0){
+                source.setColor(Source.ColorMode.BW);
+            }else if (color == 1){
+                source.setColor(Source.ColorMode.GRAYSCALE);
+            }else if (color == 2){
+                source.setColor(Source.ColorMode.COLOR);
+            }
+        }
+        if(settings.get("paper") !=null){
+            source.setAutoDocumentFeeder(settings.getBooleanValue("paper"));
+        }
+        if(settings.get("duple") != null){
+            source.setDuple(settings.getBooleanValue("duple"));
+        }
+        if(settings.get("systemUI") != null){
+            source.setSystemUI(settings.getBooleanValue("systemUI"));
+        }
+    }
+
     /**
      * 打开接口
      * @return twSource
diff --git a/src/main/java/org/aohe/scan/Source.java b/src/main/java/org/aohe/scan/Source.java
index 62f1867..8fdc84b 100644
--- a/src/main/java/org/aohe/scan/Source.java
+++ b/src/main/java/org/aohe/scan/Source.java
@@ -21,6 +21,7 @@ public class Source implements TwainListener {
     private ColorMode color = ColorMode.GRAYSCALE;
     private boolean autoDocumentFeeder = true;
     private boolean systemUI = true;
+    private boolean duple = false;
 
     private String name;
 
@@ -72,6 +73,13 @@ public class Source implements TwainListener {
         this.systemUI = systemUI;
     }
 
+    public boolean isDuple() {
+        return duple;
+    }
+
+    public void setDuple(boolean duple) {
+        this.duple = duple;
+    }
     @Override
     public void update(TwainIOMetadata.Type type, TwainIOMetadata metadata) {
 //        System.out.println(type + " -> " + metadata.getState() + ": " + metadata.getStateStr());
@@ -107,6 +115,7 @@ public class Source implements TwainListener {
                 }
 
                 source.setCapability(Twain.CAP_FEEDERENABLED, autoDocumentFeeder ? 1 : 0);
+                source.setCapability(Twain.CAP_DUPLEXENABLED, duple);
             }
         } catch (TwainException e) {
             e.printStackTrace();