Patent ID: 7817313

Claim:
An image scanner, comprising: a first carriage to move at a predetermined speed, the first carriage including: a light source to emit light onto an original; and a first mirror to deflect the light reflected by the original; a second carriage to move at a half speed of the first carriage, the second carriage including: a second mirror to deflect the light deflected by the first mirror; and a third mirror to deflect the light deflected by the second mirror; a body to movably hold the first carriage and the second carriage; a power source attached to the body to drive the light source; a flexible power supplier connected to the power source and the light source to supply power from the power source to the light source; and a tensioner provided on the second carriage to contact the flexible power supplier at a position outside an optical light path and apply tension to the flexible power supplier, wherein the second carriage further includes a support member to curve and support the flexible power supplier, and wherein the tensioner is disposed on the support member.