PURPOSE: To shorten the time for switching planes by storing plural planes of control information into plural control information memory means.

CONSTITUTION: This terminal device has a control information switching means 7, the 1st control information memory means 8 and the 2nd control information memory means 9. The control information switching means 7 switches the control information on composing so as to store the control information into the control information memory means 8, 9 for each of the corresponding planes. The need for making the switching operation at every ending and starting to check the other planes is eliminated by allowing the simultaneous processing of the plural planes in such a manner. The terminal device for composing which can make switching in a short period of time is obtd. in this way.