Mechanisms are provided for modifying an operation of a question answering system. Compounds represented by general formula :wherein R1 represents hydroxyl and R2 represents methoxy. The products are very mild to the skin and may be easily formulated into a wide variety of personal care and dermatological products. The control unit can be changed to carry out control processing according to the combination of the image reading apparatus and the image recording apparatus, and the control unit can be replaced as necessary with another control board. The temperature of each of the regions of the thermal plate is set based on each of the calculated temperature correction values. The extendable support arm includes at least a first section and a second section and has a pivoting coupling therebetween such that at least the second section can be moved between a closed position and an open position.