diff --git a/src/dynamixel_slave.cpp b/src/dynamixel_slave.cpp
index 41f2a4e51585bc617e8aa215e5a30a42851000bf..b3b2950e4c91d502998812e76d3c8e34aa4ed86b 100644
--- a/src/dynamixel_slave.cpp
+++ b/src/dynamixel_slave.cpp
@@ -59,7 +59,6 @@ void *CDynamixelSlave::process_packets_thread(void *params)
       // process the incomming data
       slave->comm_access.enter();
       num=slave->comm_dev->get_num_data();
-      std::cout << "Num data: " << num << std::endl;
       if(slave->comm_dev->read(data,num)!=num)
       {
         slave->comm_access.exit();
@@ -70,7 +69,6 @@ void *CDynamixelSlave::process_packets_thread(void *params)
         slave->comm_access.exit();
         for(i=0;i<num;i++)
 	{
-          std::cout << "num bytes: " << num_bytes << std::endl;
           if(!data_phase)
           {
             switch(num_bytes)
@@ -134,7 +132,6 @@ void *CDynamixelSlave::process_packets_thread(void *params)
           }
           else// data phase
           {
-            std::cout << "data phase: " << length << std::endl;
             packet[num_bytes]=data[i];
             num_bytes++;
             length--;