MAG-GRN adjustment (G parameter)

You can adjust the magenta and green color components. The default is 0.

Pressing B on the control button of the printer changes the value in the plus direction to 1, 2 … 7, making the green component value in the picture increase in the linear direction that the brightness increases as shown in figure 1. This adds more green as if a green light has been cast. However, the maximum effective brightness value is 255. When the value becomes larger than 255, saturation occurs. When this occurs, the saturated white area remains white even if the value is increased further in the plus direction.

Pressing b on the control button changes the value in the minus direction to –1, –2 … –7, making the green component value in the picture decrease in the linear direction that the brightness decreases as shown in the figure. Decreasing the brightness makes the green color darker and reduces the greenness. The complementary color magenta (reddish-purple) is added. In this case, the white area becomes slightly magenta in color.

YEL-BLU adjustment (B parameter)

You can adjust the yellow and blue color components. The default is 0.

Except for some special specifications, this adjustment is not possible when B/W is selected.

Pressing B on the control button of the printer changes the value in the plus direction to 1, 2 … 7, making the blue component value in the picture increase in the linear direction that the brightness increases as shown in figure 1. This adds more blue as if a blue light has been cast. However, the maximum effective brightness value is 255. When the value becomes larger than 255, saturation occurs. When this occurs, the saturated white area remains white even if the value is increased further in the plus direction.

Pressing b on the control button changes the value in the minus direction to –1, –2 … –7, making the blue component value in the picture decrease in the linear direction that the brightness decreases as shown in the figure. Decreasing the brightness makes the blue color darker and reduces the blueness. The complementary color yellow is added. In this case, the white area becomes yellowish.

Picture quality variations when the D, L, and Gm parameters are changed

Figure 2

Light

Variation

Level

Dark

Subject

Light

DARK adjustment (D parameter)

You can adjust the dark parts. The default is 0. Pressing B on the control button of the printer changes the value in the plus direction to 1, 2 … 7, making the dark side of each of the RGB data increase simultaneously in the linear direction that the depth increases as shown in figure 2. This adds more depth. However, the maximum effective darkness value is 0. When the value becomes smaller than 0, saturation occurs.

Pressing b on the control button changes the value in the minus direction to –1, –2 … –7, making the dark side of each RGB data lighter and decreasing the darkness.

LIGHT adjustment (L parameter)

You can adjust the light parts. The default is 0. Pressing B on the control button of the printer simultaneously changes the R, G, and B parameters as shown in figure 1, making the light side of each of the RGB data increase simultaneously in the linear direction that the brightness increases. This gives an overexposed quality to the picture.

Pressing b on the control button makes the light side of each of the RGB data darker, and gives you a picture that seems underexposed.

SHARPNESS adjustment

You can adjust the sharpness of pictures.

Pressing B on the control button of the printer changes the value in the plus direction from 0 to 1, 2 … 7, adding emphasis to edges in pictures. We recommend setting a small value when the print size is small.

58 Adjusting the Printer Picture Quality