Ink fountain ball is too cold
Confirm that ink fountain ball is above 70"F(21*C) to ensure adequate ink flow
Ink fountain is at a low level
Add ink to fountain ball. Added weight will allow ink to follow fountain ball better
Ink is thixotropic and gels
Work ink in fountain frequently, use ink agitators, or add a small amount of overprint vanish to induce flow
For more information, please contact us.