Printing up to print medium edges without platen soiling

A dot-recording method involving use of a dot-recording device provided with a plurality of dot-forming element groups at mutually different positions in a direction of sub-scanning,

• whereby main scanning is carried out by moving a dot-recording head and/or print medium across the direction of sub-scanning while forming dots, and sub-scanning is carried out between the main scannings by moving the print medium in the direction of sub-scanning,
• wherein the dot-recording method comprising:
• (a) preparing a platen provided with a plurality of slots that extend in a direction of main scanning at positions opposite the plurality of dot-forming element groups;
• and
• (b) forming dots using only specific dot-forming elements disposed within specific ranges commensurate with the plurality of slots at least in forming dots in an edge portion not to have blank space in a first image print mode for printing images all the way to edges of the print medium without leaving blank spaces along an upper edge and/or a lower edge of the print medium.

A dot-recording method involving use of a dot-recording device provided with a plurality of dot-forming elements,

• whereby main scanning is carried out by moving a dot-recording head and/or print medium while forming dots by driving at least part of the dot-forming elements, and sub-scanning is carried out between the main scannings by moving the print medium in a direction of sub-scanning,
• wherein the dot-recording method comprising:
• (a) preparing a dot-recording head provided with a plurality of dot-forming element groups, the dot forming element groups ejecting ink drops of a same color and occupying a different position in a direction of sub-scanning, the dot forming element group comprising a specific dot-forming element subgroup composed of specific dot-forming elements disposed within specific ranges;
• and also
• preparing a platen that extends in a direction of main scanning while disposed opposite the dot-forming element groups at least along part of a main scan pass, and that supports the print medium at a position opposite the dot-recording head, and provided with a plurality of slots that extend in the direction of main scanning at positions opposite the plurality of dotforming element groups,
• (b) selecting between a first image print mode for printing images all the way to edges without leaving blank spaces along an upper edge and/or a lower edge of the print medium, and a second image print mode for printing images while leaving blank spaces along the upper and lower edges of the print medium;
• (c) forming dots by using only the specific dot-forming elements to form dots at least in edge portions of the print medium without blank spaces in a case that the first image print mode is selected;
• and
• (d) forming dots by using the specific dot-forming elements and dot-forming elements other than the specific dot-forming elements to form dots in a case that the second image print mode is selected.

A computer-readable storage medium containing a computer program for making a computer with a dot-recording device to perform main scanning by moving a dot-recording head and/or a print medium across a direction of sub-scanning while forming dots, and to perform sub-scanning between the main scannings by moving the print medium in the direction of sub-scanning,

• the dot-recording device comprising:
• a dot-recording head provided with a plurality of dot-forming element groups composed of dot-forming elements, the dot-forming elements in one dot-forming element group being configured to eject ink drops of a same color, the plurality of dot-forming element groups comprising at least two dot-forming element groups disposed at mutually different positions in the direction of sub-scanning, each of the dot-forming element groups comprising a specific dot-forming element sub-group composed of specific dot-forming elements disposed within a specific range in the direction of sub-scanning,
• a platen designed extends in a direction of main scanning while disposed opposite the dot-forming element groups at least along part of a main scan pass, and that supports the print medium at a position opposite the dot-recording head, and provided with a plurality of slots that extend in the direction of main scanning at positions opposite the plurality of dotforming element groups;
• and
• the storage medium contains a computer program for causing the computer to form dots using only specific dot-forming element sub-groups disposed within specific ranges commensurate with the plurality of slots at least in forming dots in an edge portion of the print medium not to have blank spaces in a first image print mode for printing images all the way to edges of the print medium without leaving blank spaces along an upper edge and/or a lower edge of the print medium.

A computer-readable storage medium containing a computer program for making a computer with a dot recording device to perform main scanning by moving a dot-recording head and/or a print medium across a direction of sub-scanning while forming dots, and to perform sub-scanning between the main scannings by moving the print medium in the direction of sub-scanning,

• the dot-recording device comprising:
• a dot-recording head provided with a plurality of dot-forming element groups composed of dot-forming elements, the dot-forming elements in one dot-forming element group being configured to eject ink drops of a same color, the plurality of dot-forming element groups comprising at least two dot-forming element groups disposed at mutually different positions in the direction of sub-scanning, each of the dot-forming element groups comprising a specific dot-forming element sub-group composed of specific dot-forming elements disposed within a specific range in the direction of sub-scanning,
• a platen designed extends in a direction of main scanning while disposed opposite the dot-forming element groups at least along part of a main scan pass, and that supports the print medium at a position opposite the dot-recording head, and provided with a plurality of slots that extend in the direction of main scanning at positions opposite the plurality of dotforming element groups;
• and
• the storage medium contains:
• a computer program for causing a computer to display on a display a selection screen for permitting user to select a first image print mode or a second image print mode, and for receiving the user's selection, the first image print mode being such that images are printed all the way to edges without leaving blank spaces along an upper edge and/or a lower edge of the print medium, and the second image print mode being such that images are printed while leaving blank spaces along the upper and lower edges of the print medium;
• a computer program for causing a computer to form dots by using only the specific dot-forming elements to form at least in edge portions of the print medium without blank spaces in a case that the first image print mode is selected;
• and
• a computer program for causing a computer to form dots by using the specific doting forming elements and dot-forming elements other than the specific dot-forming elements to form dots in a case that the second image print mode is selected.