Imaging device

An imaging device comprising:

• a transport mechanism that transports a printing medium along a transport path;
• an encoder that outputs a pulse signal responsive to a transport speed of said printing medium transported by said transport mechanism;
• a first color reading element that outputs a first color reading signal relating to a first color component in a fixed cycle by photographing said printing medium at a first imaging position on said transport path with imaging timing coinciding with said fixed cycle based on a driving signal generated in said fixed cycle;
• a second color reading element that outputs a second color reading signal relating to a second color component in said fixed cycle by photographing said printing medium at a second imaging position on said transport path downstream from said first imaging position with imaging timing coinciding with said fixed cycle;
• a buffer capable of storing a plurality of said first color reading signals output by said first color reading element and a plurality of said second color reading signals output by said second color reading element;
• a first color averaging processor that performs an averaging process on said plurality of said first color reading signals stored in said buffer using a weight responsive to a time gap between a first transport signal based on said pulse signal and said driving signal;
• and
• a second color averaging processor that performs an averaging process on said plurality of said second color reading signals stored in said buffer using a weight responsive to a time gap between a second transport signal based on said pulse signal and said driving signal.