An image processing apparatus includes plural image outputting parts, an image processing part configured to process image data to be output by the plural image outputting parts, plural software control parts configured to selectively control the plural image outputting parts, a user service selecting part configured to share the image processing part in a case of processing the image data to be output from the plural image outputting parts and select plural user services that selectively use the plural software control parts, and a request executing part configured to sequentially receive plural image process requests and plural output requests from the plural software control parts and execute the plural image process requests and the plural image output requests in an order in which the plural image process requests and the plural output requests are sequentially received.