Patent ID: 11900188
Assignee: BROTHER KOGYO KABUSHIKI KAISHA
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC G  B | IPC B  G

Claim 8:
9. A non-transitory, computer-readable medium storing a program fix a controller configured to control a printing part,
the printing part including:
a conveyor configured to convey a medium in a conveying direction;
a printing head having a plurality of nozzles from which an ink of a specified color is discharged and of which positions in the conveying direction are mutually different, the printing head being configured to discharge the ink from the plurality of nozzles to the medium so as to form dots in the medium; and
a facing member configured to be capable of facing a print surface of the medium on an upstream side in the conveying direction with respect to the plurality of nozzles of the printing head,

wherein the program causing a computer of the controller to realize printing of a print image by the printing part, by causing the printing part to execute a partial printing of forming the dots by the printing head and a conveyance of the medium by the conveyor alternately and a plurality of times;
in a case that the program causes the printing part to print the print image, the program is configured to execute:
causing the printing head to execute a first partial printing N times (N being an integer not less than 2), the first partial printing being the partial printing executed in a state that the medium faces the facing member;
causing the conveyer to convey the medium by a first conveying amount, after causing the printing head to execute the first partial printing the N times;
causing the printing head to execute a second partial printing the N times, after causing the conveyor to convey the medium by the first conveying amount, the second partial printing being the partial printing executed in the state that the medium faces the facing member;
causing the conveyor to convey the medium by a second conveying amount, which is smaller than the first conveying amount, after causing the printing head to execute the second partial printing the N times;
causing the printing head to execute a third partial printing the N times, after causing the conveyor to convey the medium by the second conveying amount, the third partial printing being the partial printing executed in a state that the medium is arranged at a specified position in the conveying direction al which a predetermined position, of an end part on the upstream side in the conveying direction of the medium, faces the facing member;
causing the conveyor to convey the medium, after causing the printing head to execute the third partial printing the N times; and
then, causing the printing head to execute a fourth partial printing the N times, the fourth partial printing being the partial printing executed in a state that the medium does not face the facing member,

wherein a first area printed by the first partial printing performed the N times includes a first normal area which is printed only by the first partial printing, and a first end area which is arranged on the upstream side in the conveying direction with respect to the first normal area and which is printed by both of the first partial printing and the second partial printing,
wherein a second area printed by the second partial printing performed the N times includes the first end area, a second normal area which is arranged on the upstream side in the conveying direction with respect to the first end area and which is printed only by the second partial printing, and a second end area which is arranged on the upstream side in the conveying direction with respect to the second normal area and which is printed by both of the second partial printing and the third partial printing,
wherein a third area printed by the third partial printing performed the N times includes the second end area and a third end area which is arranged on the upstream side in the conveying direction with respect to the second end area and which is printed by both of the third partial printing and the fourth partial printing,
wherein a fourth area printed by the fourth partial printing performed the N times includes the third end area and a fourth normal area which is arranged on the upstream side in the conveying direction with respect to the third end area and which is printed only by the fourth partial printing,
wherein N pieces of a first raster line, which are adjacent to each other and which are included in a plurality of first raster lines within the first normal area and arranged in the conveying direction, are printed, respectively, by the first partial printing and the first partial printing which are mutually different from each other and performed separately from each other,
wherein N pieces of a second raster line, which are adjacent to each other and which are included in a plurality of second raster lines within the second normal area and arranged in the conveying direction, are printed, respectively, by the second partial printing and the second partial printing which are mutually different from each other and performed separately from each other,
wherein N pieces of a third raster line, which are adjacent to each other and which are included in a plurality of third raster lines within the third normal area and arranged in the conveying direction, are printed, respectively, by the third partial printing and the third partial printing which are mutually different from each other and performed separately from each other,
wherein N pieces of a fourth raster line, which are adjacent to each other and which are included in a plurality of fourth raster lines within the fourth normal area and arranged in the conveying direction, are printed, respectively, by the fourth partial printing and the fourth partial printing which are mutually different from each other and performed separately from each other, and
wherein the program is configured to cause the computer of the controller to realize:
performing a (N−1) time of the conveyance of the medium each between the N times of the first partial printing, between N times of the second partial printing, between the N times of the third partial printing, and between the N times of the fourth partial printing; and
determining a conveying amount of the (N−1) time of the conveyance of the medium so that the number of an upstream-side raster line which is included in a plurality of taster lines printable in the third partial printing performed the N times in a case that the second conveying amount is set to be a minimum value and which is arranged on the upstream side in the conveying direction with respect to a plurality of raster lines printable by the second partial printing performed the N times becomes to be not less than the number of raster lines to be printed in the first end area.