Image forming apparatus

Abstract

An image forming apparatus includes a delivery roller delivering printing paper by rotating with respect to a predetermined axial line. A generator has a rotating shaft rotated along the axial line by the delivery roller. Thus, the image forming apparatus is adapted to generate electricity.

1 . An image forming apparatus, comprising: 
 a delivery roller delivering printing paper by rotating with respect to a predetermined axial line; and    a generator having a rotating shaft adapted to rotate on the axial line by the delivery roller.    
   
   
       2 . The image forming apparatus according to  claim 1 , wherein 
 a generator clutch disposed between the delivery roller and the rotating shaft adapted to turn on and off transfer of a rotatory force of the delivery roller.    
   
   
       3 . The image forming apparatus according to  claim 2 , wherein 
 a rotating handle is adapted to be coupled to the delivery roller and to rotate the delivery roller.    
   
   
       4 . The image forming apparatus according to  claim 3 , wherein 
 the rotating handle has a connecting arm removably attachable to the delivery roller.    
   
   
       5 . The image forming apparatus according to  claim 4 , wherein 
 the connecting arm extends in a radial direction of the delivery roller.    
   
   
       6 . The image forming apparatus according to  claim 5 , wherein 
 a gripper extends in a direction substantially parallel to the axial line of the delivery roller from an end of the connecting arm.    
   
   
       7 . The image forming apparatus according to  claim 4 , wherein 
 a driving part rotates the delivery roller; and    a one-way clutch is disposed between the driving part and the delivery roller and is adapted to transfer driving power from the driving part only in a predetermined delivery direction of the printing paper.    
   
   
       8 . The image forming apparatus according to  claim 1 , wherein 
 a rotating handle is coupled to the delivery roller and rotates the delivery roller.    
   
   
       9 . The image forming apparatus according to  claim 8 , wherein 
 the rotating handle has a connecting arm removably attachable to the delivery roller and extending in a radial direction of the delivery roller.    
   
   
       10 . The image forming apparatus according to  claim 9 , wherein 
 a gripper extends in a direction substantially parallel to the axial line of the delivery roller at an end of the connecting arm.    
   
   
       11 . The image forming apparatus according to  claim 10 , wherein 
 a driving part rotates the delivery roller; and    a one-way clutch is disposed between the driving part and the delivery roller and transfers driving power from the driving part only in a predetermined delivery direction of the printing paper.    
   
   
       12 . The image forming apparatus according to  claim 1 , wherein 
 a rectifier is connected to the generator to rectify induced electrical power generated by the generator.    
   
   
       13 . The image forming apparatus according to  claim 12 , wherein 
 an accumulator is connected to the rectifier to accumulate the rectified electrical power.    
   
   
       14 . The image forming apparatus according to  claim 13 , wherein 
 an image forming unit is adapted to form an image, and    the accumulator supplies the accumulated electrical power to the image forming unit.    
   
   
       15 . The image forming apparatus according to  claim 1 , wherein the generator includes 
 a rotating shaft rotatably coupled to the delivery roller;    a stator; and    a rotor rotatably coupled to the rotating shaft and rotatably disposed within the stator.    
   
   
       16 . The image forming apparatus according to  claim 15 , wherein 
 a plurality of coils are wound on the stator in a direction substantially parallel to the axial line.    
   
   
       17 . A method of generating electricity with an image forming apparatus, comprising the steps of 
 moving a generator clutch disposed between a delivery roller and a rotating shaft rotatably coupled thereto to a closed condition; and    rotating the delivery roller to rotate the rotating shaft, which rotates a rotor rotabably coupled thereto within a stator, thereby generating induced electrical power.    
   
   
       18 . A method of generating electricity with an image forming apparatus according to  claim 17 , further comprising 
 sending the induced electrical power to a rectifier; and    rectifying the induced electrical power with the rectifier.    
   
   
       19 . A method of generating electricity with an image forming apparatus according to  claim 18 , further comprising 
 sending the rectified electrical power to an accumulator; and    accumulating the accumulated electrical power with the accumulator.    
   
   
       20 . A method of generating electricity with an image forming apparatus according to  claim 17 , further comprising 
 sensing the electrical power level of a power source part electrically connected to an image forming unit; and    rotating the delivery roller when the sensed power level falls below a predetermined value to generate induced electrical power.