Patent ID: 9296229
Filing Date: 2016-03-29
CPC Classification: B41J

Claim Text:
1. A printing apparatus printing an image onto a web, the printing apparatus comprising: a transport mechanism transporting the web; a printing head printing the image onto the web to be transported; a serpentine amount sensor detecting a serpentine amount caused by transportation of the web at a position where the printing head is disposed or a position therearound; a predicted waveform data generating unit generating predicted waveform data on the serpentine amount to be produced in the following web in accordance with actually measured waveform data on the detected serpentine amount; a shift amount determining unit determining a shift amount of a printing position of the image to be shifted in a width direction of the web, intersecting a transportation direction of the web, in a direction in which the predicted serpentine amount is decreased in accordance with the predicted waveform data; and a correcting unit correcting the printing position of the image in accordance with the shift amount and applying a corrected printing position to the printing head.