Deformed roller (out of round)

Medium severity

Symptoms

Vibration, periodic band once per roller revolution

Probable causes

  • Press stopped with rollers under pressure too long
  • handling knock
  • bent core

The Print Guy · 2026-10-05

Other problems in this category

Rollers · TPG-090

Roller slipping (not driven)

Band without transfer; squealing; accelerated wear

Medium severity

Rollers · TPG-091

Roller swelling from wrong wash

Increased diameter, altered pressures across the train

Medium severity

Rollers · TPG-085

Hard or glazed rollers

Irregular transfer, streaks, misting; shiny smooth rubber

High severity

Rollers · TPG-086

Badly set stripes

Uneven contact bands; irregular inking, plate wear

High severity

Rollers · TPG-088

Calcium deposits on rollers

Rough whitish surface; roller 'rejects' ink; tinting

High severity

Rollers · TPG-089

Dry or overheated roller ends

Inkless tips, dry bands at format edges

Low severity
All Rollers problems (7) →

Other categories

Stripping (8)Substrates GC/Bond/Coated (11)Three-knife trimmer (8)