Foam in the fountain solution

Low severity

Symptoms

Foam in the circuit; irregular dampening

Probable causes

  • Pump sucking air
  • excess additive
  • very soft water

The Print Guy · 2026-10-05

Other problems in this category

Offset – Ink/Water · TPG-030

Ink over-emulsification

Washed-out colors, short ink that won't transfer, watery haze

High severity

Offset – Ink/Water · TPG-031

Tinting (ink in non-image areas)

Slight uniform tint across the whole sheet

High severity

Offset – Ink/Water · TPG-032

Scumming (localized greasing)

Ink marks in non-image areas, localized and persistent

High severity

Offset – Ink/Water · TPG-033

Excessive dot gain

Dark print, plugged shadows, lost detail

High severity

Offset – Ink/Water · TPG-034

Color variation during the run

Sheet 5,000 doesn't match the approved start-up sheet

High severity

Offset – Ink/Water · TPG-035

Slow drying

The pile won't dry; can't back up or finish

High severity
All Offset – Ink/Water problems (14) →

Other categories

Offset – Mechanical/Paper (12)Paper/Board (10)Plates (CTP) (7)