Dampening water condition is poor.
Clean dampening tank & adjust pH, Conductivity as per standard.
Desensitized metal rollers
Clean or re-copperize rollers for better operation
Duct roller to Knurling roller setting gap too tight or knurling damaged
Please change the roller & adjust pressure to set proper gap
Excess water in the Press
Ink/water balance to be checked and maintained, also check the damp setting
Fountain solution too much acidic
PH to be controlled and maintained from 4.8 to 5.2
Ink - Water curve not adjusted properly
Adjust Ink Water curve with current ink
Ink Roller glazed & hard , so repels ink
Deglaze the rollers with a good deglazer. Check Ink roller Hardness if it is above 40 deg replace the same with new one.
Ink too resistant to water
Consult your DIC representative for further instructions
For more information, please contact us.