An image forming apparatus comprising: - a printing mechanism that is adapted to print on a printing medium ; - a drawing data creating circuit that is adapted to create drawing data for each band , which is formed by dividing an area of one page into a plurality of bands , in order, the drawing data being adapted to cause the printing mechanism to print; - a medium supply circuit that is adapted to supply the printing medium to the printing mechanism ; and - a charging circuit that is adapted to perform a charging process which charges an amount of money for printing based on a color for use in printing, wherein the medium supply circuit is adapted to perform: - a primary supply supplying the printing medium to a specific position; and - a secondary supply supplying the printing medium from the specific position to the printing mechanism , wherein the drawing data creating circuit is adapted to fix a band-used color, which is used for each band , in printing, performed based on the drawing data by the printing mechanism , to one of monochrome and color, the drawing data creating circuit being adapted to fix the color for use in printing, performed based on the drawing data by the printing mechanism , to one of monochrome and color, wherein, when the band-used color fixed as color by the drawing data creating circuit exists, the medium supply circuit is adapted to start the primary supply prior to completion of creating all the bands of the drawing data by the drawing data creating circuit , and wherein, when the band-used color fixed as color by the drawing data creating circuit exists, the charging circuit is adapted to perform the charging process in a case, where the color for use is color, after starting the primary supply and prior to completion of creating all the bands . - a printing mechanism that is adapted to print on a printing medium ; - a drawing data creating circuit that is adapted to create drawing data for each band , which is formed by dividing an area of one page into a plurality of bands , in order, the drawing data being adapted to cause the printing mechanism to print; - a medium supply circuit that is adapted to supply the printing medium to the printing mechanism ; and - a charging circuit that is adapted to perform a charging process which charges an amount of money for printing based on a color for use in printing, wherein the medium supply circuit is adapted to perform: - a primary supply supplying the printing medium to a specific position; and - a secondary supply supplying the printing medium from the specific position to the printing mechanism , wherein the drawing data creating circuit is adapted to fix a band-used color, which is used for each band , in printing, performed based on the drawing data by the printing mechanism , to one of monochrome and color, the drawing data creating circuit being adapted to fix the color for use in printing, performed based on the drawing data by the printing mechanism , to one of monochrome and color, wherein, when the band-used color fixed as color by the drawing data creating circuit exists, the medium supply circuit is adapted to start the primary supply prior to completion of creating all the bands of the drawing data by the drawing data creating circuit , and wherein, when the band-used color fixed as color by the drawing data creating circuit exists, the charging circuit is adapted to perform the charging process in a case, where the color for use is color, after starting the primary supply and prior to completion of creating all the bands . - a primary supply supplying the printing medium to a specific position; and - a secondary supply supplying the printing medium from the specific position to the printing mechanism , <EOS>