diff --git a/frontend/apps/filemanager/filemanagermenu.lua b/frontend/apps/filemanager/filemanagermenu.lua
index b2c5adc17..f36dc4dc8 100644
--- a/frontend/apps/filemanager/filemanagermenu.lua
+++ b/frontend/apps/filemanager/filemanagermenu.lua
@@ -97,48 +97,11 @@ function FileManagerMenu:setUpdateItemTable()
         end
     })
 
-    -- TODO: refactor out redundant code between reader menu and filemanager menu
-    table.insert(self.tab_item_table.setting, {
-        text = _("Font size"),
-        sub_item_table = {
-            {
-                text = _("Auto"),
-                checked_func = function()
-                    local dpi = G_reader_settings:readSetting("screen_dpi")
-                    return dpi == nil
-                end,
-                callback = function() Screen:setDPI() end
-            },
-            {
-                text = _("Small"),
-                checked_func = function()
-                    local dpi = G_reader_settings:readSetting("screen_dpi")
-                    return dpi and dpi <= 140
-                end,
-                callback = function() Screen:setDPI(120) end
-            },
-            {
-                text = _("Medium"),
-                checked_func = function()
-                    local dpi = G_reader_settings:readSetting("screen_dpi")
-                    return dpi and dpi > 140 and dpi <= 200
-                end,
-                callback = function() Screen:setDPI(160) end
-            },
-            {
-                text = _("Large"),
-                checked_func = function()
-                    local dpi = G_reader_settings:readSetting("screen_dpi")
-                    return dpi and dpi > 200
-                end,
-                callback = function() Screen:setDPI(240) end
-            },
-        }
-    })
+    table.insert(self.tab_item_table.setting, Screen:getDPIMenuTable())
     table.insert(self.tab_item_table.setting, Language:getLangMenuTable())
 
     -- info tab
-    table.insert(self.tab_item_table.info, OTAManager:genMenuEntry())
+    table.insert(self.tab_item_table.info, OTAManager:getOTAMenuTable())
     table.insert(self.tab_item_table.info, {
         text = _("Version"),
         callback = function()
diff --git a/frontend/apps/reader/modules/readermenu.lua b/frontend/apps/reader/modules/readermenu.lua
index c5e571808..ba0d3252e 100644
--- a/frontend/apps/reader/modules/readermenu.lua
+++ b/frontend/apps/reader/modules/readermenu.lua
@@ -89,43 +89,7 @@ function ReaderMenu:setUpdateItemTable()
             G_reader_settings:saveSetting("night_mode", not night_mode)
         end
     })
-    table.insert(self.tab_item_table.setting, {
-        text = _("Font size"),
-        sub_item_table = {
-            {
-                text = _("Auto"),
-                checked_func = function()
-                    local dpi = G_reader_settings:readSetting("screen_dpi")
-                    return dpi == nil
-                end,
-                callback = function() Screen:setDPI() end
-            },
-            {
-                text = _("Small"),
-                checked_func = function()
-                    local dpi = G_reader_settings:readSetting("screen_dpi")
-                    return dpi and dpi <= 140
-                end,
-                callback = function() Screen:setDPI(120) end
-            },
-            {
-                text = _("Medium"),
-                checked_func = function()
-                    local dpi = G_reader_settings:readSetting("screen_dpi")
-                    return dpi and dpi > 140 and dpi <= 200
-                end,
-                callback = function() Screen:setDPI(160) end
-            },
-            {
-                text = _("Large"),
-                checked_func = function()
-                    local dpi = G_reader_settings:readSetting("screen_dpi")
-                    return dpi and dpi > 200
-                end,
-                callback = function() Screen:setDPI(240) end
-            },
-        }
-    })
+    table.insert(self.tab_item_table.setting, Screen:getDPIMenuTable())
     table.insert(self.tab_item_table.setting, self:genRefreshRateMenu())
     table.insert(self.tab_item_table.setting, {
         text = _("Show advanced options"),
@@ -138,7 +102,7 @@ function ReaderMenu:setUpdateItemTable()
     table.insert(self.tab_item_table.setting, Language:getLangMenuTable())
 
     -- info tab
-    table.insert(self.tab_item_table.info, OTAManager:genMenuEntry())
+    table.insert(self.tab_item_table.info, OTAManager:getOTAMenuTable())
     table.insert(self.tab_item_table.info, {
         text = _("Version"),
         callback = function()
diff --git a/frontend/ui/device/screen.lua b/frontend/ui/device/screen.lua
index b3f3ae4c2..b87ffd790 100644
--- a/frontend/ui/device/screen.lua
+++ b/frontend/ui/device/screen.lua
@@ -1,7 +1,8 @@
 local Blitbuffer = require("ffi/blitbuffer")
 local Geom = require("ui/geometry")
-local DEBUG = require("dbg")
 local util = require("ffi/util")
+local DEBUG = require("dbg")
+local _ = require("gettext")
 
 -- Blitbuffer
 -- einkfb
@@ -236,5 +237,45 @@ function Screen:restoreFromBB(bb)
     end
 end
 
+function Screen:getDPIMenuTable()
+    return {
+        text = _("Font size"),
+        sub_item_table = {
+            {
+                text = _("Auto"),
+                checked_func = function()
+                    local dpi = G_reader_settings:readSetting("screen_dpi")
+                    return dpi == nil
+                end,
+                callback = function() Screen:setDPI() end
+            },
+            {
+                text = _("Small"),
+                checked_func = function()
+                    local dpi = G_reader_settings:readSetting("screen_dpi")
+                    return dpi and dpi <= 140
+                end,
+                callback = function() Screen:setDPI(120) end
+            },
+            {
+                text = _("Medium"),
+                checked_func = function()
+                    local dpi = G_reader_settings:readSetting("screen_dpi")
+                    return dpi and dpi > 140 and dpi <= 200
+                end,
+                callback = function() Screen:setDPI(160) end
+            },
+            {
+                text = _("Large"),
+                checked_func = function()
+                    local dpi = G_reader_settings:readSetting("screen_dpi")
+                    return dpi and dpi > 200
+                end,
+                callback = function() Screen:setDPI(240) end
+            },
+        }
+    }
+end
+
 return Screen
 
diff --git a/frontend/ui/otamanager.lua b/frontend/ui/otamanager.lua
index 10a48769e..4949affd5 100644
--- a/frontend/ui/otamanager.lua
+++ b/frontend/ui/otamanager.lua
@@ -89,7 +89,7 @@ function OTAManager:zsync()
     end
 end
 
-function OTAManager:genMenuEntry()
+function OTAManager:getOTAMenuTable()
     return {
         text = _("Check update"),
         callback = function()