diff --git a/src/escpos/printer/win32raw.py b/src/escpos/printer/win32raw.py
index d3e4b77..bb04a42 100644
--- a/src/escpos/printer/win32raw.py
+++ b/src/escpos/printer/win32raw.py
@@ -153,7 +153,7 @@ class Win32Raw(Escpos):
         :type msg: bytes
         """
         if self.printer_name is None:
-            raise Exception("Printer not found")
+            raise DeviceNotFoundError("Printer not found")
         if not self.device:
-            raise Exception("Printer job not opened")
+            raise DeviceNotFoundError("Printer job not opened")
         win32print.WritePrinter(self.device, msg)