Dot Matrix
Printer Converter

Three print modes

• Draft (9-pin) — Fast, low-density pin output. Wide horizontal gaps between dots, heavy horizontal banding visible at close range. The raw workhorse look of 1980s office printing.
• NLQ — Near Letter Quality — Two-pass printing at higher density. Sharper, smoother edges. The best general-purpose mode for that authentic dot matrix aesthetic.
• Photo (Fine) — Full-density pass. Dots overlap slightly, producing near-continuous tone output at 240 DPI. Closest to photographic quality the LC-10 could achieve.

Four dithering algorithms

• Bayer 4×4 — Ordered dithering. Most similar to what the Star LC-10 actually used — produces a crisp, geometric crosshatch pattern.
• Floyd-Steinberg — Classic error diffusion. Smooth tonal gradients, minimal repetitive patterning.
• Atkinson — Softer Apple Mac-era diffusion. Slightly less contrast, more painterly result.
• None — Raw threshold. Stark black and white, no gradients — most aggressive print look.

Conversion examples

Before

Draft — low quality

Before

120 DPI fine

Before

240 DPI photo fine