Idler Roller Marks

low
mechanical
media

Glossy/pressure tracks from rollers, visible under raking light.

Likely Causes

  1. Excessive pinch roller pressure: Impresses the roller texture onto the film.

  2. Debris on rollers: Transfers imperfections to the film.

Quick Checks

  • Reduce pinch pressure for this film.
  • Clean rollers; check for flat spots.

Step-by-Step Fix

  1. Lower pinch tension or lift idle rollers — Prevents marking

Acceptance Criteria
  • No marks visible at 45° light