diff --git a/twain/twain/huagaods.cpp b/twain/twain/huagaods.cpp
index 8d122b4..7bc2e96 100644
--- a/twain/twain/huagaods.cpp
+++ b/twain/twain/huagaods.cpp
@@ -1183,6 +1183,7 @@ Twpp::Result huagao_ds::imageFileXferGet(const Twpp::Identity& origin)
 				DeleteFileA(file.c_str());
 		}
 
+		int cv_e = 0;
 		if (ret.status() == ConditionCode::Success && m_fileXfer.format() != ImageFileFormat::Bmp)
 		{
 			SANE_ImageFormatConvert	conv;
@@ -1202,16 +1203,25 @@ Twpp::Result huagao_ds::imageFileXferGet(const Twpp::Identity& origin)
 			conv.dst.is_file = SANE_TRUE;
 			conv.dst.data = target.c_str();
 			conv.dst.data_len = target.length();
-			MoveFileA(target.c_str(), file.c_str());
-			if(scanner_->convert_image(&conv) != SCANNER_ERR_OK)
-				ret = { ReturnCode::Failure, ConditionCode::OperationError };
-			DeleteFileA(file.c_str());
+			while (!MoveFileA(target.c_str(), file.c_str()))
+			{
+				if (++cv_e >= 9)
+					break;
+				Sleep(30);
+			}
+			if (cv_e < 9)
+			{
+				cv_e = scanner_->convert_image(&conv);
+				if (cv_e != SCANNER_ERR_OK)
+					ret = { ReturnCode::Failure, ConditionCode::OperationError };
+				DeleteFileA(file.c_str());
+			}
 		}
 
 		{
 			std::wstring info(load_sane_util::ansi2unic(m_fileXfer.filePath().string().c_str()));
 			wchar_t	r[80] = { 0 };
-			swprintf_s(r, _countof(r) - 1, L": result = %d\r\n", ret.returnCode());
+			swprintf_s(r, _countof(r) - 1, L": status = %d(convert: 0x%x)\r\n", ret.status(), cv_e);
 			load_sane_util::log_info((info + r).c_str(), 0);
 		}
 	}