Patent US 5,355,231

An output apparatus for receiving code information, developing it into a bit map and recording it, in which the code information is developed into image information of a bit pattern form the image information is recorded on a recording medium and an image which is formed on the recording medium can be recorded while a dot density of the image is changed, and a the dot density is changed for use by the recording means in correspondence to the code system designated by the code information. The printing dot density is automatically changed to the dot density corresponding to the print control program such as an emulation program or the like, so that characters of different fonts such as English and Japanese can be automatically printed at the optimum printing dot densities.