Abstract: The present invention includes a microphone 1 inputting voice uttered by a user; a voice recognition processing section 3 recognizing the voice inputted by the microphone 1, and converting the recognized voice into an input symbol string; a conversation pattern processing section 5 inputting the input symbol string from the voice recognition processing section 3, and outputting an output symbol string corresponding to the input symbol string based on a conversation pattern described in advance; a voice synthesis processing section 7 converting the output symbol string from the conversation pattern processing section 5 into voice; a speaker 9 outputting and uttering the voice from the voice synthesis processing section 7; and a conversation learning section 41 grasping conversation characteristics of the user based on the input symbol string from the conversation pattern processing section 5, and changing the output symbol string in accordance with the grasped conversation characteristics.

Abstract: A control roller for controlling the lateral position of a moving web is pivotable about an axis perpendicular to the web surface immediately upstream of the control roller. In the preferred embodiment, the two ends of a plate on which the roller is mounted are slidably supported on shafts tangent to a circle having the pivoting axis as its center.