around a spindle s of the scouring roller 117 or a spindle sa of the ink applying roller 135 the doctor device 125 is arranged so as to be released by turning the inking roller train 132 on the smoothing side by a hand of an operator or any other mechanical means furthermore the rollers 17 18 and 34 may be supported by a frame 144a as one unit to be rotatable around the spindle s of the scouring roller 117 for example the inking arrangement 110 entails the work for changing an ink shade and also for washing the ink and therefore in such case the working personnel must insert their hands into the doctor device 125 to proceed with wiping out the ink in a cleaning agent such as gasoline petroleum or the like in the case of the smoothing side inking roller train 132 since the doctor device 125 is positioned in a limited space surrounded by the inking roller trains 132 and 133 a handling work of the doctor device 125 involves some difficulty but the doctor device 125 is released and its handling is facilitated by arranging the smoothing side inking roller train 132 rotatable integrally by the frame 144 or 144a the doctor device 125 on a side of the finishing side inking roller train 133 is not positioned within a space.