Printer and recording medium

A recording medium in which a program is recorded in a computer readable manner, said program causing a computer to generate data, which are supplied to a printer that creates at least two different types of dots having different sizes and prints an image, based on input image data, said program comprising:

• at least specific data that specify relations between recording ratios of different types of dots and a tone value corresponding to a printing condition, the specific data comprising different values set to a limit recording ratio, up to which only a specific type of dot that is selected among the at least two different types of dots and enables independent expression of a certain tone value is recorded, corresponding to the printing condition,
• said program causing the computer to attain the functions of:
• inputting a tone value of a pixel and a printing condition;
• and
• specifying different types of dots to be created in a pixel based on an input tone value and an input printing condition, in order to attain a recording ratio stored in the specific data.

A printing apparatus comprising:

• a printing condition input unit that inputs a specified printing condition;
• a memory unit that stores relations between a recording ratio of at least two different types of dots and a tone value with regard to a printing condition;
• a printer with a head, wherein the head creates at least two different types of dots;
• and
• a device configured to determine whether one of at least two different types of dots is created in a pixel, based on a recording ratio corresponding to the specified printing condition stored in the memory unit, and configured to further determine different values for the recording ratio and the tone value for a specific type of dot when another type of dot, having a greater size than a specific type of dot and that prevents conspicuous banding, is created in a pixel, based on a limit recording ratio and a limit tone value.