Transport Apparatus and Recording Apparatus

Abstract

A transport apparatus includes a plurality of rollers that transport a medium, a detection unit that detects a rotation amount of each of the rollers, and a control unit that controls driving of each of the rollers. The control unit controls the driving of each of the rollers using a correction value that corresponds to a rotation amount from an origin position of the corresponding roller.

What is claimed is: 
     
         1 . A transport apparatus comprising:
 a plurality of rollers that transport a medium;   a detection unit that detects a rotation amount of each of the rollers; and   a control unit that controls driving of each of the rollers,   wherein the control unit controls the driving of each of the rollers using a correction value that corresponds to a rotation amount from an origin position of the corresponding roller.   
     
     
         2 . The transport apparatus according to  claim 1 ,
 wherein the plurality of rollers include an upstream-side roller and a downstream-side roller in a transport path of the medium.   
     
     
         3 . The transport apparatus according to  claim 2 ,
 wherein a circumference of the upstream-side roller is an integral multiple of a circumference of the downstream-side roller.   
     
     
         4 . The transport apparatus according to  claim 2 ,
 wherein a distance between a position at which the upstream-side roller applies a transport force to the medium and a position at which the downstream-side roller applies a transport force to the medium is an integral multiple of the circumference of the upstream-side roller.   
     
     
         5 . A recording apparatus comprising:
 a transport apparatus including a plurality of rollers that transport a medium, a detection unit that detects a rotation amount of each of the rollers, and a control unit that controls driving of each of the rollers using a correction value that corresponds to a rotation amount from an origin position of the corresponding roller; and   a recording unit,   wherein the plurality of rollers are located upstream from the recording unit in a transport direction.