Numbering and imprinting machine

A numbering and imprinting machine comprising:

• a number cylinder which is rotatably supported by main body frames, and includes at least one numbering device mounted on an outer circumferential surface thereof;
• a moving inker which includes a number inker that supplies ink onto said number cylinder, and an inker frame on which said number inker is mounted, said moving inker being movable between a printing position at which said number inker comes into contact with said number cylinder, and a retraction position at which said number inker separates from said number cylinder to form a maintenance space between said inker frame and said number cylinder, said maintenance space allowing an operator to enter and to perform a maintenance operation therein;
• a first cleaning device which is mounted on the main body frames, and cleans said number cylinder;
• a second cleaning device which is mounted on said moving inker and cleans said number inker;
• an inker position detector which detects a position of said moving inker;
• and
• a control device which, when said inker position detector detects that said moving inker is set at the printing position, rotates said number cylinder, drives said number inker and controls cleaning operations by said first cleaning device and said second cleaning device, and, when said inker position detector detects that said moving inker is set at the retraction position, inhibits said number cylinder from rotating at a printing speed and rotates said number cylinder only according to the operations performed by the operator who has entered the maintenance space.