diff --git a/project/ble_peripheral/ble_app_bladder_patch/icm42670p/app_raw/app_raw.c b/project/ble_peripheral/ble_app_bladder_patch/icm42670p/app_raw/app_raw.c
index 2ac1070..468e14b 100644
--- a/project/ble_peripheral/ble_app_bladder_patch/icm42670p/app_raw/app_raw.c
+++ b/project/ble_peripheral/ble_app_bladder_patch/icm42670p/app_raw/app_raw.c
@@ -119,20 +119,20 @@ int setup_imu_device(struct inv_imu_serif *icm_serif)
 	/* IMU 드라이버 초기화 — 시리얼 인터페이스 연결 및 콜백 함수 등록 */
 	rc = inv_imu_init(&icm_driver, icm_serif, imu_callback);
 	if (rc != INV_ERROR_SUCCESS) {
-		printf("!!! ERROR : Failed to initialize IMU!\r\n");
+		DBG_PRINTF("!!! ERROR : Failed to initialize IMU!\r\n");
 		return rc;
 	}
 
 	/* WHOAMI 레지스터 읽기 — 디바이스 존재 및 통신 확인 */
 	rc = inv_imu_get_who_am_i(&icm_driver, &who_am_i);
 	if (rc != INV_ERROR_SUCCESS) {
-		printf("!!! ERROR : Failed to read whoami!\r\n");
+		DBG_PRINTF("!!! ERROR : Failed to read whoami!\r\n");
 		return rc;
 	}
 
 	/* WHOAMI 값 검증 — ICM42670P의 경우 0x67이어야 함 */
 	if (who_am_i != ICM_WHOAMI) {
-		printf("!!! ERROR : Bad WHOAMI value! Read 0x%02x, expected 0x%02x\r\n", who_am_i, ICM_WHOAMI);
+		DBG_PRINTF("!!! ERROR : Bad WHOAMI value! Read 0x%02x, expected 0x%02x\r\n", who_am_i, ICM_WHOAMI);
 		return INV_ERROR;
 	}
 
@@ -354,7 +354,7 @@ void imu_callback(inv_imu_sensor_event_t *event)
 	 * 스케일링된 데이터를 UART로 출력
 	 */
 	if (event->sensor_mask & (1 << INV_SENSOR_ACCEL) && event->sensor_mask & (1 << INV_SENSOR_GYRO))
-		printf("%u: %.3f, \t%.3f, \t%.3f, \t%.3f, \t%.3f, \t%.3f, \t%.3f\r\n",
+		DBG_PRINTF("%u: %.3f, \t%.3f, \t%.3f, \t%.3f, \t%.3f, \t%.3f, \t%.3f\r\n",
 		        (uint32_t)timestamp,
 		        accel_g[0], accel_g[1], accel_g[2],
 		        temp_degc,
@@ -381,7 +381,7 @@ void imu_callback(inv_imu_sensor_event_t *event)
 
 		/* UART 모드: "Tp" 접두사로 6축 데이터를 텍스트 형식으로 출력 */
 		else if(cmd_type_t == CMD_UART) {
-			printf("Tp%d,%d,%d,%d,%d,%d\r\n\r\n", accel[0], accel[1], accel[2], gyro[0], gyro[1], gyro[2]);
+			DBG_PRINTF("Tp%d,%d,%d,%d,%d,%d\r\n\r\n", accel[0], accel[1], accel[2], gyro[0], gyro[1], gyro[2]);
 		}
 
 		/*
@@ -399,7 +399,7 @@ void imu_callback(inv_imu_sensor_event_t *event)
 			ssp_data[5] = (uint16_t)gyro[2];
 
 			format_data(imu_bin_buffer, "rsp:", ssp_data,12);
-			printf("Tp%d,%d,%d,%d,%d,%d\r\n\r\n", accel[0], accel[1], accel[2], gyro[0], gyro[1], gyro[2]);
+			DBG_PRINTF("Tp%d,%d,%d,%d,%d,%d\r\n\r\n", accel[0], accel[1], accel[2], gyro[0], gyro[1], gyro[2]);
 			dr_binary_tx_safe(imu_bin_buffer,8);
 
 			if(custom_add_data==true) {