diff --git a/src/main/java/com/ycwl/basic/service/printer/impl/PrinterServiceImpl.java b/src/main/java/com/ycwl/basic/service/printer/impl/PrinterServiceImpl.java
index 6703ac49..062178df 100644
--- a/src/main/java/com/ycwl/basic/service/printer/impl/PrinterServiceImpl.java
+++ b/src/main/java/com/ycwl/basic/service/printer/impl/PrinterServiceImpl.java
@@ -490,12 +490,10 @@ public class PrinterServiceImpl implements PrinterService {
             List<PrinterResp> printerList = printerMapper.listByScenicId(scenicId);
             if (printerList.size() != 1) {
                 throw new BaseException("请选择打印机");
-            } else {
-                printerId = printerList.getFirst().getId();
             }
-        } else {
-            printer = printerMapper.getById(printerId);
+            printerId = printerList.getFirst().getId();
         }
+        printer = printerMapper.getById(printerId);
         if (printer == null) {
             throw new BaseException("打印机不存在");
         }
diff --git a/src/main/resources/mapper/SourceMapper.xml b/src/main/resources/mapper/SourceMapper.xml
index 0bd0aa81..3f7c2338 100644
--- a/src/main/resources/mapper/SourceMapper.xml
+++ b/src/main/resources/mapper/SourceMapper.xml
@@ -358,5 +358,7 @@
         select *
         from source
         where face_sample_id = #{faceSampleId} and type = #{type}
+        order by create_time desc
+        limit 1
     </select>
 </mapper>