Image printing apparatus and method of controlling the same

An image processing apparatus for performing a copy operation for causing a reader to read an image on an original and a printer to print the image read by the reader on a print medium, comprising:

• a plurality of scaling units configured to scale the image read by the reader, wherein the plurality of scaling units include a first scaling unit with high image quality performance and a second scaling unit with high processing speed performance;
• an input unit configured to input an instruction for selecting one of a plurality of copy modes for performing the copy operation including a marginless copy mode for performing the copy operation without margin on the print medium;
• a setting unit configured to set a scaling ratio for scaling the image read by the reader;
• a decision unit configured to decide a utilization ratio of each of the plurality of scaling units in accordance with the copy mode selected by the instruction inputted by the input unit and the scaling ratio set by the setting unit;
• and
• a copy control unit configured to perform the copy operation by causing at least one of the plurality of scaling units to scale the image read by the reader in accordance with the utilization ratio decided by the decision unit and causing the printer to print the image scaled by the at least one of the plurality of scaling units on the print medium,
• wherein, in a case where the input unit inputs an instruction for selecting the marginless copy mode, the decision unit decides the utilization ratio so as to preferentially use the second scaling unit, and in a case where the input unit inputs an instruction for selecting a copy mode for an image-quality oriented copy operation other than the marginless copy mode of the plurality of copy modes and the setting unit sets a scaling ratio other than 100%, the decision unit decides the utilization ratio so as to preferentially use the first scaling unit.