Patent ID: 8259354

Claim:
Recording apparatus, comprising: a media support comprising a cylindrical surface adapted to receive recording media; a recording head comprising a plurality of individually addressable recording channels; a carriage adapted for moving the recording head along a path relative to a rotational axis of the media support; a sensor; and a controller configured to: operate the carriage to move the recording head along the path while forming at least one image feature on the recording media positioned on the cylindrical surface with a first orientation; operate the sensor to detect main-scan distortion in the at least one image feature while the recording media is positioned on the cylindrical surface with a second orientation, the second orientation being different from the first orientation; and adjust activation timing of a portion of the recording channels in accordance with the detected main-scan distortion; wherein the at least one image feature comprises a first image feature, and the sensor is adapted to detect the main-scan distortion by detecting a change in an expected sub-scan positioning of one or more portions of the first image feature while the recording media is positioned on the cylindrical surface with the second orientation.