Likely Causes

1. Incorrect step value for current film: Different slip changes advance amount.

2. Roller contamination or pressure change: Alters traction and step consistency.

3. Temperature expansion changes: Environment shift alters base setting.

4. Wrong RIP pass set for profile: Magnifies visible step error.

Quick Checks

• Print OEM feed/step chart at job resolution.
• Clean pinch/drive rollers; set pressure evenly.
• Verify profile & pass match media preset.
• Repeat test after 15-min warmup.
• Log final step value in job ticket.

Step-by-Step Fix

1. Print step/registration chart — Measures current error precisely.

2. Adjust step value in printer service menu — Removes overlap/gap between passes.

3. Clean and re-seat pinch rollers — Restores consistent traction.

4. Lock in correct RIP preset (passes/dot) — Avoids magnifying artifacts.

5. Save as calibration profile per film type — Speeds future setup and consistency.