Image forming apparatus, image forming method and non-transitory computer-readable recording medium encoded with image forming program

An image forming method that is performed in an image forming apparatus,

• the image forming apparatus comprising an image former configured to form an image on a recording medium, and
• the image forming method including:
• a medium type determining step of, before the image is formed on the recording medium by the image former, determining a medium type of a subject medium that is the recording medium on which the image is to be formed by the image former;
• and
• a forming mode determining step of, before the medium type of the subject medium is determined, determining whether to set a medium speed that is predetermined with respect to the medium type of the subject medium as an image forming speed at which the image former forms the image.

A non-transitory computer-readable recording medium encoded with an image forming program executed by a computer that controls an image forming apparatus,

• the image forming apparatus comprising an image former configured to form an image on a recording medium, wherein
• the computer that executes the image forming program,
• before the image is formed on the recording medium by the image former, determines a medium type of a subject medium that is the recording medium on which the image former forms the image, and
• before the medium type of the subject medium is determined, determines whether to set a medium speed that is predetermined with respect to the medium type of the subject medium as an image forming speed at which the image former forms the image.