diff --git a/component/scanner/src/main/java/one/nem/lacerta/component/scanner/ScannerManagerActivity.java b/component/scanner/src/main/java/one/nem/lacerta/component/scanner/ScannerManagerActivity.java
index f5109892..fed35e21 100644
--- a/component/scanner/src/main/java/one/nem/lacerta/component/scanner/ScannerManagerActivity.java
+++ b/component/scanner/src/main/java/one/nem/lacerta/component/scanner/ScannerManagerActivity.java
@@ -1,15 +1,45 @@
 package one.nem.lacerta.component.scanner;
 
 import android.os.Bundle;
+import android.util.Log;
 
 import androidx.activity.EdgeToEdge;
+import androidx.annotation.AnimatorRes;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.core.graphics.Insets;
 import androidx.core.view.ViewCompat;
 import androidx.core.view.WindowInsetsCompat;
 
+import com.websitebeaver.documentscanner.DocumentScanner;
+
+import javax.inject.Inject;
+
+import dagger.hilt.android.AndroidEntryPoint;
+
+@AndroidEntryPoint
 public class ScannerManagerActivity extends AppCompatActivity {
 
+    DocumentScanner documentScanner = new DocumentScanner(
+            this,
+            (croppedImageResults) -> {
+                // display the first cropped image
+                return null;
+            },
+            (errorMessage) -> {
+                // an error happened
+                Log.v("documentscannerlogs", errorMessage);
+                return null;
+            },
+            () -> {
+                // user canceled document scan
+                Log.v("documentscannerlogs", "User canceled document scan");
+                return null;
+            },
+            null,
+            null,
+            5
+    );
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -20,5 +50,10 @@ public class ScannerManagerActivity extends AppCompatActivity {
             v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom);
             return insets;
         });
+
+        documentScanner.startScan();
+        // Init
+
     }
+
 }
\ No newline at end of file
diff --git a/component/scanner/src/main/java/one/nem/lacerta/component/scanner/ScannerManagerFragment.java b/component/scanner/src/main/java/one/nem/lacerta/component/scanner/ScannerManagerFragment.java
index 7203e691..b820111e 100644
--- a/component/scanner/src/main/java/one/nem/lacerta/component/scanner/ScannerManagerFragment.java
+++ b/component/scanner/src/main/java/one/nem/lacerta/component/scanner/ScannerManagerFragment.java
@@ -1,5 +1,6 @@
 package one.nem.lacerta.component.scanner;
 
+import android.content.Intent;
 import android.os.Bundle;
 
 import androidx.fragment.app.Fragment;
@@ -9,6 +10,7 @@ import android.view.View;
 import android.view.ViewGroup;
 
 import com.websitebeaver.documentscanner.DocumentScanner;
+import com.websitebeaver.documentscanner.DocumentScannerActivity;
 
 import java.util.Objects;
 
@@ -31,8 +33,6 @@ public class ScannerManagerFragment extends Fragment {
     @Inject
     LacertaVcsFactory vcsFactory;
 
-    DocumentScanner documentScanner;
-
     private static final boolean DEFAULT_SINGLE_PAGE = false;
     private boolean singlePage;
 
@@ -62,25 +62,6 @@ public class ScannerManagerFragment extends Fragment {
         if (getArguments() != null) {
             singlePage = getArguments().getBoolean("singlePage", DEFAULT_SINGLE_PAGE);
         }
-
-        documentScanner = new DocumentScanner(
-                requireActivity(),
-                (croppedImage) -> {
-                    // TODO-rca: 画像を保存する
-                    return null;
-                },
-                (error) -> {
-                    // TODO-rca: エラー処理
-                    return null;
-                },
-                () -> {
-                    // TODO-rca: キャンセル処理
-                    return null;
-                },
-                null,
-                null,
-                null
-        );
     }
 
     @Override
@@ -105,10 +86,10 @@ public class ScannerManagerFragment extends Fragment {
         // Init
         logger.debug(TAG, "called");
 
-        view.findViewById(R.id.button_start_scan).setOnClickListener(v -> {
-            if (documentScanner != null) {
-                documentScanner.startScan();
-            }
+        view.findViewById(R.id.button_intent_scanner_manager_activity).setOnClickListener(v -> {
+            // DocumentScannerActivityを起動する
+            Intent intent = new Intent(requireActivity().getApplicationContext(), ScannerManagerActivity.class);
+            startActivity(intent);
         });
     }
 }
\ No newline at end of file
diff --git a/component/scanner/src/main/res/layout/activity_scanner_manager.xml b/component/scanner/src/main/res/layout/activity_scanner_manager.xml
index 1b0b261a..db5c0e80 100644
--- a/component/scanner/src/main/res/layout/activity_scanner_manager.xml
+++ b/component/scanner/src/main/res/layout/activity_scanner_manager.xml
@@ -7,4 +7,12 @@
     android:layout_height="match_parent"
     tools:context=".ScannerManagerActivity">
 
+    <Button
+        android:id="@+id/button_start_scan"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:text="Button"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/component/scanner/src/main/res/layout/fragment_scanner_manager.xml b/component/scanner/src/main/res/layout/fragment_scanner_manager.xml
index 0de8b747..c4909a49 100644
--- a/component/scanner/src/main/res/layout/fragment_scanner_manager.xml
+++ b/component/scanner/src/main/res/layout/fragment_scanner_manager.xml
@@ -7,7 +7,7 @@
     tools:context=".ScannerManagerFragment">
 
     <Button
-        android:id="@+id/button_start_scan"
+        android:id="@+id/button_intent_scanner_manager_activity"
         android:layout_width="0dp"
         android:layout_height="wrap_content"
         android:text="Button"