is then fed to the inner loading components in one of the ways according to the invention different ways can be applied simultaneously in a single doctor in practice all of the ways described are advantageous though differences exist between them though internal tubes do not hang detrimentally they are more difficult to maintain that external tubes in addition in cases of damage all the internal tubes tend to be damaged simultaneously correspondingly simultaneous damage is rare in external hoses and damaged sections can be easily located and repaired the loading arrangement according to the invention can also be used not only to adjust the profile of the doctor blade but also to adjust the force of the contact with the surface being doctored unlike the state of the art the doctor can be adjusted while it is operating the properties of the loading system can be exploited for example to compensate for wear in the doctor blade in normal doctor the doctor blade wears most in the center so that wear is least at the edges in the same way there is unevenness in the loading profile of the doctor blade by increasing the pressure on the edge zones the contact force at these points is increased in that case the doctor blade wears most at.