An image processing method is provided for reproducing multi-gradation image data in the form of a bi-gradation image as used particularly in a printer, a scanner, a copier, a facsimile, etc. A receiving system of the digital broadcasting system comprises a baseband processor, a management processor and a presentation processor. The cleaning member is attached at the distal end of the arm. The determination parameters are changed depending on the above service specifications. In this mechanism, the portion of the hooking device 12, opposite to the side adjacent to the traction device 11 is attached to the die 33 in the vicinity of the portion of the die 33, against which the nozzle 26 is abutted.