Coated leather (book-cover leather; White-only image) on ARTJET UV flatbed

Hold by edges; avoid skin oil on print area

White only

1+

0

0 (channel lock used during diagnosis)

Reduce LED lamp power; test 20% → 30% → 40% (client success at 40%)

100% lamp power caused heat stains outside print area on coated leather

ARTJET field case: stains from LED heat × coating; at 40% lamp power white cured with no stains