diff --git a/src/MapCache/MapCache.php b/src/MapCache/MapCache.php
index 3c92304..2eddf97 100644
--- a/src/MapCache/MapCache.php
+++ b/src/MapCache/MapCache.php
@@ -2,6 +2,7 @@
 
 namespace StaticMapLite\MapCache;
 
+use StaticMapLite\Canvas\CanvasInterface;
 use StaticMapLite\Printer\PrinterInterface;
 
 class MapCache
@@ -31,9 +32,10 @@ class MapCache
 
     public function checkMapCache(): bool
     {
+        return false;
         $this->mapCacheID = md5($this->serializeParams());
 
-        $filename = $this->mapCacheIDToFilename();
+        $filename = $this->getFilename();
 
         return file_exists($filename);
     }
@@ -42,8 +44,8 @@ class MapCache
     {
         return join('&', [
             $this->printer->getZoom(),
-            $this->printer->getCenterLatitude(),
-            $this->printer->getCenterLongitude(),
+            $this->printer->getLatitude(),
+            $this->printer->getLongitude(),
             $this->printer->getWidth(),
             $this->printer->getHeight(),
             serialize($this->printer->getMarkers()),
@@ -55,11 +57,52 @@ class MapCache
     public function mapCacheIDToFilename()
     {
         if (!$this->mapCacheFile) {
-            $this->mapCacheFile = $this->mapCacheBaseDir . "/" . $this->maptype . "/" . $this->zoom . "/cache_" . substr($this->mapCacheID, 0, 2) . "/" . substr($this->mapCacheID, 2, 2) . "/" . substr($this->mapCacheID, 4);
+            $this->mapCacheFile = sprintf(
+                '%s/%s/%s/cache_%/%s/%s',
+                $this->mapCacheBaseDir,
+                $this->printer->getMaptype(),
+                $this->printer->getZoom(),
+                substr($this->mapCacheID, 0, 2),
+                substr($this->mapCacheID, 2, 2),
+                substr($this->mapCacheID, 4)
+            );
         }
 
         $filename = sprintf('%s.%s', $this->mapCacheFile, $this->mapCacheExtension);
 
         return $filename;
     }
+
+    public function cache(CanvasInterface $canvas)
+    {
+        $this->mkdir_recursive(dirname($this->mapCacheIDToFilename()), 0777);
+        imagepng($canvas->getImage(), $this->mapCacheIDToFilename(), 9);
+        $this->sendHeader();
+        if (file_exists($this->mapCacheIDToFilename())) {
+            return file_get_contents($this->mapCacheIDToFilename());
+        } else {
+            return imagepng($canvas->getImage());
+        }
+    }
+
+    public function mkdir_recursive($pathname, $mode)
+    {
+        is_dir(dirname($pathname)) || $this->mkdir_recursive(dirname($pathname), $mode);
+        return is_dir($pathname) || @mkdir($pathname, $mode);
+    }
+
+    public function getFilename(): string
+    {
+        return $this->mapCacheIDToFilename();
+    }
+
+    public function sendHeader()
+    {
+        header('Content-Type: image/png');
+        $expires = 60 * 60 * 24 * 14;
+        header("Pragma: public");
+        header("Cache-Control: maxage=" . $expires);
+        header('Expires: ' . gmdate('D, d M Y H:i:s', time() + $expires) . ' GMT');
+    }
+
 }
diff --git a/src/MapCache/MapCacheInterface.php b/src/MapCache/MapCacheInterface.php
new file mode 100644
index 0000000..dd9f9b1
--- /dev/null
+++ b/src/MapCache/MapCacheInterface.php
@@ -0,0 +1,15 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: maltehuebner
+ * Date: 14.02.18
+ * Time: 09:31
+ */
+
+namespace StaticMapLite\MapCache;
+
+
+interface MapCacheInterface
+{
+
+}
diff --git a/src/Printer/AbstractPrinter.php b/src/Printer/AbstractPrinter.php
index 86df2d1..46564c6 100644
--- a/src/Printer/AbstractPrinter.php
+++ b/src/Printer/AbstractPrinter.php
@@ -3,10 +3,15 @@
 namespace StaticMapLite\Printer;
 
 use StaticMapLite\Canvas\CanvasInterface;
+use StaticMapLite\MapCache\MapCache;
+use StaticMapLite\MapCache\MapCacheInterface;
 use StaticMapLite\TileResolver\TileResolverInterface;
 
 abstract class AbstractPrinter implements PrinterInterface
 {
+    /** @var MapCacheInterface $mapCache */
+    protected $mapCache;
+
     /** @var int $maxWidth */
     protected $maxWidth = 1024;
 
@@ -39,14 +44,19 @@ abstract class AbstractPrinter implements PrinterInterface
     /** @var bool $useTileCache */
     protected $useTileCache = true;
 
+    /** @var int $zoom */
     protected $zoom;
 
-    protected $lat;
+    /** @var float $latitude */
+    protected $latitude;
 
-    protected $lon;
+    /** @var float $longitude */
+    protected $longitude;
 
+    /** @var int $width */
     protected $width;
 
+    /** @var int $height */
     protected $height;
 
     protected $image;
@@ -187,26 +197,26 @@ abstract class AbstractPrinter implements PrinterInterface
         return $this;
     }
 
-    public function getLat(): float
+    public function getLatitude(): float
     {
-        return $this->lat;
+        return $this->latitude;
     }
 
-    public function setLat(float $lat): PrinterInterface
+    public function setLatitude(float $latitude): PrinterInterface
     {
-        $this->lat = $lat;
+        $this->latitude = $latitude;
 
         return $this;
     }
 
-    public function getLon(): float
+    public function getLongitude(): float
     {
-        return $this->lon;
+        return $this->longitude;
     }
 
-    public function setLon(float $lon): PrinterInterface
+    public function setLongitude(float $longitude): PrinterInterface
     {
-        $this->lon = $lon;
+        $this->longitude = $longitude;
 
         return $this;
     }
diff --git a/src/Printer/Printer.php b/src/Printer/Printer.php
index e9eb14b..2345998 100644
--- a/src/Printer/Printer.php
+++ b/src/Printer/Printer.php
@@ -8,6 +8,7 @@ use StaticMapLite\Element\Marker\AbstractMarker;
 use StaticMapLite\Element\Polyline\Polyline;
 use StaticMapLite\ElementPrinter\Marker\ExtraMarkerPrinter;
 use StaticMapLite\ElementPrinter\Polyline\PolylinePrinter;
+use StaticMapLite\MapCache\MapCache;
 use StaticMapLite\TileResolver\CachedTileResolver;
 use StaticMapLite\Util;
 
@@ -16,12 +17,13 @@ class Printer extends AbstractPrinter
     public function __construct()
     {
         $this->zoom = 0;
-        $this->lat = 0;
-        $this->lon = 0;
+        $this->latitude = 0;
+        $this->longitude = 0;
         $this->width = 500;
         $this->height = 350;
         $this->maptype = $this->tileDefaultSrc;
 
+        $this->mapCache = new MapCache($this);
         $this->tileResolver = new CachedTileResolver();
         $this->tileResolver->setTileLayerUrl($this->tileSrcUrl[$this->maptype]);
     }
@@ -42,8 +44,8 @@ class Printer extends AbstractPrinter
 
     public function setCenter(float $latitude, float $longitude): Printer
     {
-        $this->lat = $latitude;
-        $this->lon = $longitude;
+        $this->latitude = $latitude;
+        $this->longitude = $longitude;
 
         return $this;
     }
@@ -64,7 +66,7 @@ class Printer extends AbstractPrinter
         return $this;
     }
 
-    public function setZoom(int $zoom): AbstractPrinter
+    public function setZoom(int $zoom): PrinterInterface
     {
         $this->zoom = $zoom;
 
@@ -75,7 +77,7 @@ class Printer extends AbstractPrinter
         return $this;
     }
 
-    public function setMapType(string $mapType): AbstractPrinter
+    public function setMapType(string $mapType): PrinterInterface
     {
         $this->maptype = $mapType;
 
@@ -86,8 +88,8 @@ class Printer extends AbstractPrinter
 
     public function initCoords()
     {
-        $this->centerX = Util::lonToTile($this->lon, $this->zoom);
-        $this->centerY = Util::latToTile($this->lat, $this->zoom);
+        $this->centerX = Util::lonToTile($this->longitude, $this->zoom);
+        $this->centerY = Util::latToTile($this->latitude, $this->zoom);
 
         $this->offsetX = floor((floor($this->centerX) - $this->centerX) * $this->tileSize);
         $this->offsetY = floor((floor($this->centerY) - $this->centerY) * $this->tileSize);
@@ -136,32 +138,11 @@ class Printer extends AbstractPrinter
         }
     }
 
-    public function checkMapCache()
-    {
-        $this->mapCacheID = md5($this->serializeParams());
-        $filename = $this->mapCacheIDToFilename();
-        if (file_exists($filename)) return true;
-    }
-
-    public function serializeParams()
-    {
-        return join("&", array($this->zoom, $this->lat, $this->lon, $this->width, $this->height, serialize($this->markers), $this->maptype));
-    }
-
-    public function mapCacheIDToFilename()
-    {
-        if (!$this->mapCacheFile) {
-            $this->mapCacheFile = $this->mapCacheBaseDir . "/" . $this->maptype . "/" . $this->zoom . "/cache_" . substr($this->mapCacheID, 0, 2) . "/" . substr($this->mapCacheID, 2, 2) . "/" . substr($this->mapCacheID, 4);
-        }
-        return $this->mapCacheFile . "." . $this->mapCacheExtension;
-    }
-
     public function copyrightNotice()
     {
         $logoImg = imagecreatefrompng($this->osmLogo);
         imagecopy($this->canvas->getImage(), $logoImg, imagesx($this->canvas->getImage()) - imagesx($logoImg), imagesy($this->canvas->getImage()) - imagesy($logoImg), 0, 0, imagesx($logoImg), imagesy($logoImg));
     }
-
     public function sendHeader()
     {
         header('Content-Type: image/png');
@@ -191,23 +172,16 @@ class Printer extends AbstractPrinter
 
     public function showMap()
     {
-        if ($this->useMapCache) {
+        if ($this->mapCache) {
             // use map cache, so check cache for map
-            if (!$this->checkMapCache()) {
+            if (!$this->mapCache->checkMapCache()) {
                 // map is not in cache, needs to be build
                 $this->makeMap();
-                $this->mkdir_recursive(dirname($this->mapCacheIDToFilename()), 0777);
-                imagepng($this->canvas->getImage(), $this->mapCacheIDToFilename(), 9);
-                $this->sendHeader();
-                if (file_exists($this->mapCacheIDToFilename())) {
-                    return file_get_contents($this->mapCacheIDToFilename());
-                } else {
-                    return imagepng($this->canvas->getImage());
-                }
+                $this->mapCache->cache($this->canvas);
             } else {
                 // map is in cache
                 $this->sendHeader();
-                return file_get_contents($this->mapCacheIDToFilename());
+                return file_get_contents($this->mapCache->getFilename());
             }
 
         } else {
@@ -218,10 +192,4 @@ class Printer extends AbstractPrinter
 
         }
     }
-
-    public function mkdir_recursive($pathname, $mode)
-    {
-        is_dir(dirname($pathname)) || $this->mkdir_recursive(dirname($pathname), $mode);
-        return is_dir($pathname) || @mkdir($pathname, $mode);
-    }
 }
diff --git a/src/Printer/PrinterInterface.php b/src/Printer/PrinterInterface.php
index b2be518..3863458 100644
--- a/src/Printer/PrinterInterface.php
+++ b/src/Printer/PrinterInterface.php
@@ -37,11 +37,11 @@ interface PrinterInterface
     public function getZoom(): int;
     public function setZoom(int $zoom): PrinterInterface;
 
-    public function getLat(): float;
-    public function setLat(float $lat): PrinterInterface;
+    public function getLatitude(): float;
+    public function setLatitude(float $lat): PrinterInterface;
 
-    public function getLon(): float;
-    public function setLon(float $lon): PrinterInterface;
+    public function getLongitude(): float;
+    public function setLongitude(float $lon): PrinterInterface;
 
     public function getWidth(): int;
     public function setWidth($width): PrinterInterface;