Mounting structure for inverter circuit board for light source lamp of image reader

Abstract

A mounting structure for an inverter circuit board for a light source lamp of an image reader in which mounting means for mounting the inverter circuit board for a light source lamp of an image reader onto a carriage is located to be operated from the direction in which the carriage moves in one embodiment. The inverter circuit and heat dissipation plate are removably mounted to an end of the full rate carriage. In another embodiment, the circuit board is mounted to the top for access from above the carriage.

1 . A mounting structure for an intensity adjustment for a light source lamp of an image reader which adjustment can be accessed without removing the reader's carriage from its frame comprising: 
 a carriage which has a front surface facing the direction of movement of said carriage along an original placed on a platen glass;    a light source lamp mounted on said carriage whose light beams are moved along the original such that the original is sequentially irradiated, and the light reflected on the original is picked up, and an image formed on the original is read; and    an intensity adjusting means mounted to said carriage and including an operating portion exposed to said front surface for adjusting the intensity of the light beams from said light source lamp in the direction in which the carriage moves.    
   
   
       2 . The mounting structure as defined in  claim 1 , wherein said intensity adjusting means comprises a variable resistor which can be accessed from said front surface for adjustment by a tool.  
   
   
       3 . A mounting structure for an intensity adjustment for a light source lamp of an image reader which adjustment can be accessed without removing the reader's carriage from its frame comprising: 
 a carriage which has a top surface facing a direction orthogonal to the movement of said carriage along an original placed on a platen glass;    a light source lamp mounted on said carriage whose light beams are moved along the original such that the original is sequentially irradiated, and the light reflected on the original is picked up, and an image formed on the original is read; and    an intensity adjusting means mounted to said carriage and including an operating portion exposed to said top surface for adjusting the intensity of the light beams from said light source lamp in the direction in which the carriage moves.    
   
   
       4 . The mounting structure as defined in  claim 3 , wherein said intensity adjusting means comprises a variable resistor which can be accessed from said top surface for adjustment by a tool.  
   
   
       5 . A mounting structure for an intensity adjustment for a light source lamp of an image reader comprising: 
 a frame;    a carriage movably mounted on said frame for movement for scanning an original;    a light source lamp mounted on said carriage whose light beams are moved along the original such that the original is sequentially irradiated, and the light reflected on the original is picked up, and an image formed on the original is read; and    an intensity adjusting means mounted to said carriage and including an operating portion exposed for adjusting the intensity of the light beams from said light source lamp with said carriage mounted to said frame.    
   
   
       6 . The mounting structure as defined in  claim 5 , wherein said intensity adjusting means comprises a variable resistor which can be accessed on said carriage by a tool.