patterns > Reverse L
The Reverse L grid pattern is named after its static segment, which resembles the shape of a horizontally flipped letter "L".
The pattern uses a MIC grid layout and indirectly encodes information into a base-4 number system. On one A4 size document, the MIC of the Reverse L pattern is printed approximately 230 times.
specs
| Name |
Reverse L |
| Encoded informations |
manufacturer, model, unique printer identifier |
| Pattern type |
grid |
| Pattern size |
10.3 x 13.16 mm |
649 x 829 px |
| Matrix size |
18 x 22 cells |
| Dot size |
0.17 x 0.11 mm |
8 x 5 px |
| Confirmed manufacturers |
HP, Kyocera, Lexmark, Okidata, Ricoh, Printing alliance (HP + Canon)... |
| yDots format |
yDots-rl-x1-x2-x3-x4-x5-x6-x7-x8-x9-x10-x11-x12-x13-x14-x15-x16-x17-x18-x19-x20-x21-x22 |
| * reference values in pixels at 1200 dpi |
|---|
coding matrix
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