diff --git a/slave/SPISlave.c b/slave/SPISlave.c
index dc54cbb..1cb77b0 100644
--- a/slave/SPISlave.c
+++ b/slave/SPISlave.c
@@ -57,6 +57,7 @@ void AllClearCommand(char *symbols, int lenght){
     Fill(255);
     update();
   }
+  ClearPages();
  }
 
 // command 2
diff --git a/slave/head_oled_i2c.h b/slave/head_oled_i2c.h
index 5d6237e..f4cceab 100644
--- a/slave/head_oled_i2c.h
+++ b/slave/head_oled_i2c.h
@@ -71,6 +71,7 @@ void Fill(uint8_t fill);
 void update();
 
 void DrawChar(uint8_t x, uint8_t y, uint8_t charIndex, uint8_t fill);
+void ClearPages();
 void AddSymbol(uint8_t symbol);
 void DelSymbol();
 void SetPage(uint8_t p);
diff --git a/slave/oled_i2c.c b/slave/oled_i2c.c
index e0449f0..ae72776 100644
--- a/slave/oled_i2c.c
+++ b/slave/oled_i2c.c
@@ -292,6 +292,12 @@ void SetPage(uint8_t p){
     if (p > 8) page = 8;
 }
 
+void ClearPages(){
+  for (uint8_t row = 0; row < 8; row++) {
+    amountByteInPage[row] = 0;
+  }
+}
+
 void AddSymbol(uint8_t symbol){
     if (amountByteInPage[page] + 5 < 128){
         DrawChar(amountByteInPage[page],page*8,symbol,1);