Printing apparatus, control method, and storage medium

A method for controlling a printing apparatus, the method comprising:

• conveying a printing medium;
• and
• performing control to print (1) an image of a foundation layer, (2) an image in a stack region, and (3) an image in a non-stack region on the printing medium by conveying the print medium in the conveying while scanning a printing unit over the printing medium in a direction along a predetermined direction intersecting with a conveyance direction in which the printing medium is conveyed, the printing unit including (1) a first ejection port array in which a plurality of ejection ports for ejecting a first ink are arranged in the conveyance direction and (2) a second ejection port array in which a plurality of ejection ports for ejecting a second ink different from the first ink are arranged in the conveyance direction, the first ejection port array and the second ejection port array being arranged in the predetermined direction,
• wherein in the printing unit, (1) an ejection port group in the first ejection port array used to print the image of the foundation layer, (2) an ejection port group in the second ejection port array used to print the image in the stack region stacked on the foundation layer, and (3) an ejection port group in the second ejection port array used to print the image in the non-stack region not stacked on the foundation layer are set,
• wherein the image in the stack region and the image in the non-stack region are a color image,
• wherein in the performing control, control is performed so that in printing of the image in the non-stack region, the image of the foundation layer is printed using an ejection port group in the first ejection port array which is located at a same position as an ejection port group in the second ejection port array for printing the image in the non-stack region, in a direction in which the ejection ports of the first ejection port array are arranged, and
• wherein in a case where the control is performed so that in printing of the color image, the image of the foundation layer is printed while using a first ejection port group in the second ejection port array which is a selectively used ejection port group, the control is performed so that at least part of a second ejection port group in the first ejection port array is used to print the image of the foundation layer in the non-stack region, the second ejection port group being an ejection port group located at a same position as the first ejection port group in the direction in which the ejection ports of the first ejection port array are arranged.

A non-transitory computer-readable storage medium storing a program for causing a printing apparatus to function as a plurality of units comprising:

• a conveying unit configured to convey a printing medium;
• and
• a control unit configured to perform control to print (1) an image of a foundation layer, (2) an image in a stack region, and (3) an image in a non-stack region on the printing medium by causing the conveyance unit to convey the print medium while scanning a printing unit over the printing medium in a direction along a predetermined direction intersecting with a conveyance direction in which the printing medium is conveyed, the printing unit including (1) a first ejection port array in which a plurality of ejection ports for ejecting a first ink are arranged in the conveyance direction and (2) a second ejection port array in which a plurality of ejection ports for ejecting a second ink different from the first ink are arranged in the conveyance direction, the first ejection port array and the second ejection port array being arranged in the predetermined direction,
• wherein in the printing unit, (1) an ejection port group in the first ejection port array used to print the image of the foundation layer, (2) an ejection port group in the second ejection port array used to print the image in the stack region stacked on the foundation layer, and (3) an ejection port group in the second ejection port array used to print the image in the non-stack region not stacked on the foundation layer are set,
• wherein the image in the stack region and the image in the non-stack region are a color image,
• wherein the control unit performs the control so that in printing of the image in the non-stack region, the image of the foundation layer is printed using an ejection port group in the first ejection port array which is located at a same position as an ejection port group in the second ejection port array for printing the image in the non-stack region, in a direction in which the ejection ports of the first ejection port array are arranged, and
• wherein in a case where the control unit performs the control so that in printing of the color image, the image of the foundation layer is printed while using a first ejection port group in the second ejection port array which is a selectively used ejection port group, the control unit performs the control so that at least part of a second ejection port group in the first ejection port array is used to print the image of the foundation layer in the non-stack region, the second ejection port group being an ejection port group located at a same position as the first ejection port group in the direction in which the ejection ports of the first ejection port array are arranged.

A printing apparatus comprising:

• a conveyance unit configured to convey a printing medium;
• a printing unit including (1) a first ejection port array in which a plurality of ejection ports for ejecting a first ink are arranged in a conveyance direction in which the printing medium is conveyed and (2) a second ejection port array in which a plurality of ejection ports for ejecting a second ink different from the first ink are arranged in the conveyance direction, the first ejection port array and the second ejection port array being arranged in a predetermined direction intersecting with the conveyance direction, the printing unit being configured to print an image by scanning over the printing medium in a direction along the predetermined direction;
• and
• a control unit configured to perform control to print (1) an image of a foundation layer, (2) an image in a stack region, and (3) an image in a non-stack region on the printing medium by causing the conveyance unit to convey the printing medium while causing the printing unit to perform the scanning,
• wherein in the printing unit, (1) an ejection port group in the first ejection port array used to print the image of the foundation layer, (2) an ejection port group in the second ejection port array used to print the image in the stack region stacked on the foundation layer, and (3) an ejection port group in the second ejection port array used to print the image in the non-stack region not stacked on the foundation layer are set,
• wherein the image in the stack region and the image in the non-stack region are a color image, and
• wherein the control unit performs control so that in printing of the image in the non-stack region, the image of the foundation layer is printed using an ejection port group in the first ejection port array which is located at a same position as an ejection port group in the second ejection port array for printing the image in the non-stack region, in a direction in which the ejection ports of the first ejection port array are arranged, and
• wherein in a case where the control unit performs the control so that in printing of the color image, the image of the foundation layer is printed while using a third ejection port group in the first ejection port array which is a selectively used ejection port group, the control unit performs the control so that at least part of a fourth ejection port group in the second ejection port array is used to print the color image in the non-stack region, the fourth ejection port group being an ejection port group located at a same position as the third ejection port group in the direction in which the ejection ports of the second ejection port array are arranged.