diff --git a/src/printers.py b/src/printers.py
index 379ce18..b3d020c 100644
--- a/src/printers.py
+++ b/src/printers.py
@@ -1,13 +1,14 @@
 """
 A collection of Printers.
 
-It has methods to discover printers, and provides an interface for the methods expected from printers.
+It has methods to discover printers, and provides an interface for
+the methods expected from printers.
 """
 
-from collections.abc import Mapping, Set
+from collections.abc import Set
 import usb.core
 import usb.util
-from printer import Printer, EscPosPrinter, BrotherPrinter, PrinterType
+from printer import Printer, EscPosPrinter, BrotherPrinter
 
 
 class Printers:
@@ -81,7 +82,7 @@ class Printers:
 
                 # If the object creation is successfull, we add it to the list of Printers
                 printers.add(escpos_printer)
-                self.app.logger.debug("Found a %s printer" % manufacturer)
+                self.app.logger.debug("Found a %s printer", manufacturer)
 
                 # We already found the type of printer,
                 # we don't need an extra comparaison.
@@ -99,7 +100,7 @@ class Printers:
                     )
                 except Exception as e:
                     self.app.logger.error(
-                        "Could not create a %s printer class with %s:%s" % product,
+                        "Could not create a %s printer class with %s:%s" , product,
                         dev.idVendor,
                         dev.idProduct,
                     )
@@ -107,9 +108,9 @@ class Printers:
 
                 # If the object creation is successfull, we add it to the list of Printers
                 printers.add(brother_printer)
-                self.app.logger.debug("Found a %s printer" % manufacturer)
+                self.app.logger.debug("Found a %s printer" , manufacturer)
 
-        self.app.logger.debug("Found %s printers" % len(printers))
+        self.app.logger.debug("Found %s printers" , len(printers))
         return printers
 
     def any(self) -> Printer:
@@ -122,16 +123,20 @@ class Printers:
         else:
             raise RuntimeError("No printers available")
 
-    def get_printer(self, printer_type):
-        """
-        Return a specific printer
+    # def get_printer(self, printer_type):
+    #     """
+    #     Return a specific printer
 
-        printer_type -- a printer type
-        """
-        return NotImplementedError()
+    #     printer_type -- a printer type
+    #     """
+    #     return NotImplementedError()
 
 
 class _FindClass:
+    """
+    Use by usb.core to modify the way USB devices are found
+    Taken from pyUSB documentation on Github
+    """
     def __init__(self, class_):
         self._class = class_