High grammages (coated 300+ g and boards): integral press setup
High severitySymptoms
Feeder jams, variable registration, gripper marks, delivery curl, false doubles from the detector
Probable causes
- Stiffness and caliper change the whole sheet path: air, grippers, pressures, detector and speed are all wrong if inherited from the previous paper
The Print Guy · 2026-10-05
Other problems in this category
Substrates GC/Bond/Coated · TPG-112
Lightweight bond: wrinkles, waves and unstable registration
Diagonal wrinkles, wandering registration, waviness after printing
Substrates GC/Bond/Coated · TPG-113
Gloss coated 2 sides: slow drying and set-off
Pile won't dry, set-off on both sides, blocking on work-and-back jobs
Substrates GC/Bond/Coated · TPG-115
Matte coated 2 sides: burnishing
Areas that 'polish' and turn shiny when rubbed: the matte defect par excellence; visible on boxes, covers and backs
Substrates GC/Bond/Coated · TPG-108
Different behavior of GC1 vs GC2 (choice and setup)
Same job prints differently when switching between GC1 and GC2; color or finishing complaints
Substrates GC/Bond/Coated · TPG-109
Mottling in solids on GC board
Cloudy, mottled solids, especially midtones and color masses on GC1/GC2
Substrates GC/Bond/Coated · TPG-110
Printing the uncoated back of GC2
Back-side text and images come out plugged, dull or with high gain