When using a wall printer, many beginners think higher DPI always means better print quality. But in real wall printing, the final result depends on several settings working together, especially pass, DPI, and feathering.
Pass means how many times the printhead prints over the same area. Higher pass can make colors smoother, but it also slows down printing.
Feathering helps reduce visible banding by making ink overlap more smoothly between passes. It is useful for gradients, portraits, and large color areas.
For detailed portraits or photos, a higher pass with medium feathering is usually safer. For logos, text, and sharp edges, feathering should not be too strong, or the edges may look soft. For large solid color areas, strong feathering can help make the color more even, but too much ink may cause dripping on vertical walls.
For 3D or embossed effects, the height mainly comes from white ink layering, not simply from increasing pass or DPI.
In short, wall printer settings should be adjusted based on the image type and wall condition. Higher settings are not always better. The A better choice is to balance print quality, speed, ink volume, and stability.