To provide: an image forming apparatus that can automatically carry out gradation correction at a specific timing and stabilizing an output image; a correction method; a program; and a recording medium.

The image forming apparatus includes: an automatic gradation correction means for carrying out the gradation correction by outputting a test pattern and reading the test pattern by a reading means; a gradation correction means for carrying out the gradation correction by using the data generated by the automatic gradation correction means; and an engine adjustment means for adjusting a state of an engine. The image forming apparatus includes: an associating means for associating data that are respectively outputted from the automatic gradation correction means and the engine adjustment means; and a storage means for storing a plurality of data that are associated by the associating means, wherein the gradation correction is carried out by the gradation correction means by referring to the storage means when performing the engine adjustment.

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