diff --git a/src/dynamixel_servo.cpp b/src/dynamixel_servo.cpp
index 0a054937d11f2a44ef01968dc1027c73a64a2175..02484e076d5020b7fe281605bfe4330d6eb8ca88 100644
--- a/src/dynamixel_servo.cpp
+++ b/src/dynamixel_servo.cpp
@@ -581,12 +581,10 @@ namespace dynamixel_robot_gazebo
 
   void CDynServo::on_ping(void)
   {
-    std::cout << "device " << (int)this->id << " pinged" << std::endl;
   }
 
   unsigned char CDynServo::on_read(unsigned short int address, unsigned short int length, unsigned char *data)
   {
-    std::cout << "device " << (int)this->id << " read operation" << std::endl;
     for(unsigned int i=0;i<length;i++)
       data[i]=this->memory[address+i];
 
@@ -595,7 +593,6 @@ namespace dynamixel_robot_gazebo
 
   unsigned char CDynServo::on_write(unsigned short int address, unsigned short int length, unsigned char *data)
   {
-    std::cout << "device " << (int)this->id << " write operation" << std::endl;
     for(unsigned int i=0;i<length;i++)
       this->memory[address+i]=data[i];
     return 0;