595081 A conveyor (100) for conveying a continuous web is disclosed. The conveyor comprises a guide mechanism (see 220, figure 5), detection mechanism (230) and a drive mechanism (240). The guide mechanism is configured to remain in contact with the side edge portion of the web. The detection mechanism is configured to detect the passing position of a least one side edge of the web. When a variation in the width of the web is detected the drive mechanism moves the guide mechanism and detection mechanism to adjust for the variation in width.
