1. An image forming apparatus comprising: a display which is configured to display at least one screen from among a plurality of screens for setting a function among a plurality of functions of the image forming apparatus, the screens comprising adjustments corresponding to the function; an operation section which is operable by a user to select one or more functions from among the plurality of functions displayed on the display, wherein the one or more functions selected by the user are to be printed on a sheet along with adjustments thereof, the selected one or more functions corresponding to the functions which are settable via the screens; a controller configured to aggregate and arrange the one or more functions which are selected by the user, along with the adjustments of each selected function, and to generate a composite image comprising representations of the selected functions and the corresponding adjustments which are selectable from the screens; a print section to print the composite image including the representations of the functions selected by the user via the operation section and the corresponding adjustments onto a sheet; and a memory section which stores the functions selected by the user via the operation section and the corresponding adjustments in association with position information of positions on the sheet at which the corresponding representations included in the composite image are printed, wherein the selected functions and the corresponding adjustments are settable by the user via use of a selection device which is capable of sending position information to the controller corresponding to positions on the sheet at which the representations are printed, according to a selection made by the user using the selection device on the sheet, wherein the controller is further configured to: (i) receive position information indicating a position on the sheet where at least one representation among the representations is printed, which at least one representation is selected by the user on the sheet using the selection device, (ii) refer to information stored in the memory section to identify an adjustment corresponding to the at least one representation selected by the user, based on the received position information, and (iii) set the identified function and the corresponding adjustment on the image forming apparatus, wherein the composite image is printed on the sheet by the print section of the image forming apparatus and the printed sheet is output by the image forming apparatus, and wherein the selection made by the user using the selection device is made on the printed sheet having the composite image printed thereon by the print section of the image forming apparatus and having been output by the image forming apparatus.