Abstract: A composite doctor blade to be installed in a blade holder (11) containing a throat (15) has a rear part (14) made of a composite material which has a profiling (16) which protrudes beyond the plane (18) defined by the doctor blade in order to retain the doctor blade in the blade holder (11). At a distance from the rear part (14), part (17) of the profiling (16) protrudes from the plane (18) to one side only. Moreover, the part (17) is higher than its width in the cross-sectional plane of the doctor blade.

Abstract: Equipment and a method for changing a blade which is intended to be placed in a blade holder (10) and which is preferably arranged as a flexible band (16). The equipment has reels (14, 15) for keeping the band (16) reeled and transfer devices (18) for moving the band (16) in the blade holder (10) between the reels (14, 15). The equipment includes guide devices (17) for guiding the band (16) from a reel (14, 15) to the blade holder (10) and vice versa. The guide devices (17) are arranged to turn the band (16) longitudinally to be essentially parallel to the blade holder (10). The closest guide member (20) of the guide members (20, 20?) belonging to the guide devices (17) is rotated to a position that essentially corresponds to the position of the blade holder (10) turned to the blade-changing position.