Image forming apparatus

An image forming apparatus includes an image formation processor to perform image formation to a recording medium with a primary color toner and a secondary color toner that is different from the primary color toner, a database to store multiple setting values, each of which corresponding a combination of a mode type depending on the primary color toner and the secondary color toner and a media type of the recording medium and being applied to a process of the image formation performed by the image forming processor, a database retriever to retrieve an optimum setting value from the multiple setting values stored in the database according to a specified combination of the mode type and the media type, and an operation setting arranger to perform the image formation based on the optimum setting value acquired from the database retriever.