Doubling
High severitySymptoms
Doubled dot or faint shadow image; plugged screen with no cause
Probable causes
- Loose or badly tensioned blanket
- cylinder play
- sheet bouncing in the grippers
The Print Guy · 2026-10-05
Other problems in this category
Offset – Mechanical/Paper · TPG-066
Variable registration (paper)
Registration wanders randomly between sheets
Offset – Mechanical/Paper · TPG-068
Slurring
Elongated dots in the print direction; 'combed' text
Offset – Mechanical/Paper · TPG-074
Roller streaks
Bands parallel to the cylinder axis, periodic or not
Offset – Mechanical/Paper · TPG-069
Picking
White voids in solids; fibers on the blanket
Offset – Mechanical/Paper · TPG-070
Piling on the blanket
Ink/fiber deposit on the blanket degrading the image
Offset – Mechanical/Paper · TPG-071
Backside marking in the perfector
The printed first side marks while printing the second