Barcode that won't scan
High severitySymptoms
The reader can't read the printed code
Probable causes
- Code in CMYK (impossible to register)
- size < 80% of nominal
- low contrast
- bar width reduced by gain
The Print Guy · 2026-10-05
Other problems in this category
Prepress · TPG-001
Printed colors don't match the screen
Client complains the print doesn't match what was approved on screen
Prepress · TPG-005
Badly flattened transparencies
White boxes, missing elements or shifted colors in print
Prepress · TPG-010
Imposition with wrong grain direction
Cracking on folds and spines; books that won't open properly
Prepress · TPG-002
Black text built in 4 colors
Small text looks blurry or shows color halos
Prepress · TPG-003
Missing bleed
White slivers along the edges after trimming
Prepress · TPG-004
Excessive total ink coverage (TAC)
Dark areas that won't dry, set-off in the pile