Paper post handling device

Abstract

A paper post handling device includes a stapler to receive a paper image-formed by an image forming apparatus and perform a stapling process. The stapler is controlled so as to move in parallel with a front end of the paper outside a paper width at a predetermined distance from a neighborhood of a center of a paper width, then rotate in a less than 45° arc, moreover move outside the paper width, and perform the stapling process at a desired position.

1 . A paper post handling device comprising: 
 a stapler to receive a paper image-formed by an image forming apparatus and perform a stapling process,    wherein the stapler is controlled so as to move in parallel with a front end of the paper outside a paper width at a predetermined distance from a neighborhood of a center of a paper width, then rotate in a less than 45° arc, moreover move outside the paper width, and perform the stapling process at a desired position.    
   
   
       2 . The device according to  claim 1 , wherein the predetermined distance of horizontal movement is ¼ to ⅓ of the paper width.  
   
   
       3 . The device according to  claim 1 , wherein the angle of less than 45° is 30°.  
   
   
       4 . The device according to  claim 1 , wherein the desired position to be stapled can be set by an operator.  
   
   
       5 . The device according to  claim 1 , wherein on the desired position to be stapled, appropriate position information is held beforehand for each paper size.  
   
   
       6 . A method for receiving and stapling a paper image-formed by an image forming apparatus, comprising: 
 moving the stapler in parallel with a front end of the paper outside a paper width at a predetermined distance from a neighborhood of a center of the paper width;    rotating the stapler in a less than 45° arc;    moving the stapler outside the paper width; and    stapling the paper image-formed at a desired position by the stapler.    
   
   
       7 . The method according to  claim 6 , wherein the predetermined distance of horizontal movement is ¼ to ⅓ of the paper width.  
   
   
       8 . The method according to  claim 6 , wherein the angle of less than 45° is 30°.  
   
   
       9 . The method according to  claim 6 , wherein the desired position to be stapled can be set by an operator.  
   
   
       10 . The method according to  claim 6 , wherein on the desired position to be stapled, appropriate position information is held beforehand for each paper size.  
   
   
       11 . A stapler for performing a stapling process, comprising: 
 a frame;    a rail attached to the frame;    a mobile body moving back and forth freely along the rail;    a stapler attached to the mobile body; and    a slit board composed of a horizontal portion and a slant portion with at least one slit formed,    wherein the stapler is joined to the slit, and the stapler moved by the mobile body, when moving at a predetermined distance across the horizontal portion of the slit, is positioned so that staples for bundling papers are positioned in parallel with paper edges, and when moving across the slant portion of the slit, the staples for bundling papers are rotated in a less than 45° arc.    
   
   
       12 . The stapler according to  claim 11 , wherein the predetermined distance moving across the horizontal portion is ¼to ⅓ of the paper width.  
   
   
       13 . The stapler according to  claim 11 , wherein the angle of less than 45° is 30°.  
   
   
       14 . The stapler according to  claim 11 , wherein the mobile body includes a first pulley and a second pulley driven forward and backward and an endless belt stretched between the first and second pulleys.