diff --git a/src/printers/P700Printer.cpp b/src/printers/P700Printer.cpp
index 0cb7f71..3d996e8 100644
--- a/src/printers/P700Printer.cpp
+++ b/src/printers/P700Printer.cpp
@@ -128,7 +128,12 @@ bool P700Printer::printBitmap(const graphics::Bitmap<graphics::ALPHA8>& bitmap)
 
 bool P700Printer::printMonochromeData(const graphics::MonochromeData& data) {
     // Send initialization sequence
-    send(p700::commands::INITIALIZE);
+    // The INITIALIZE command needs to be sent as a 128-byte packet with ESC @ at the end
+    std::vector<uint8_t> initCmd(128, 0x00);
+    initCmd[126] = 0x1b;  // ESC
+    initCmd[127] = 0x40;  // @
+    send(initCmd);
+
     // Status is already queried in getPrinterStatus()
     send(p700::commands::PRINT_MODE);
     send(p700::commands::AUTO_STATUS);
@@ -163,6 +168,9 @@ bool P700Printer::printMonochromeData(const graphics::MonochromeData& data) {
         }
     }
 
+    // Send print finalization commands
+    send(p700::commands::EJECT);
+
     return true;
 }