| 摘要 |
An image forming apparatus includes an electrophotographic printer including a printer controller that performs an image processing on image data into which a page description language is developed and outputs the data to a printer engine, and the printer engine to perform printing of an image based on the image data transmitted from the printer controller, and an image quality maintaining control device to maintain image quality of the printer, and the image quality maintaining control device includes a halftone parameter control unit to change a halftone parameter when an image quality maintaining control processing of the printer is executed. According to the image forming apparatus, an image more stable than the related art can be maintained against an image quality variation caused by a mechanism or a process influenced by aging or environmental variation.
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