Apparatus and methods for selectively and safely reversing flow in coiled tubing used for wellbore cleanouts are disclosed. When the data size of the incoming electronic mail exceeds the receivable size, the facsimile server receives the incoming electronic mail from the electronic mail server by the packet and sends the electronic mail by the packet to a designated address. The server extracts a file containing a part related to the received update information, and judges whether or not the extracted file has been copied and then transmitted to a different client. Characteristics of the sensor chip are kept stable by suppressing the thermal stress transfer from the package case. The guide member is located opposite to the recording head with the conveyor belt therebetween.