Abstract:
A label printer includes a tray, a tray transport means, a print mechanism, a disk holding mechanism, a disk release mechanism, a carriage transport means and a control means.
Abstract:
A density unevenness reduction method of a printing apparatus having a sheet transport mechanism which transmits a driving force of a driving device to a roller via a plurality of gears to drive the roller for transporting a sheet, the method includes: assuming one tooth and one turn of each of the gears each to be a simple harmonic oscillation of a single sine wave, and generating a synthesized wave of the sine waves of the gears; and adjusting the module and the number of teeth of each of the gears, thereby dispersing a frequency at which the oscillations of the gears overlap and are amplified in the synthesized wave.