Plate Processing

• Check the developing parameters
• Check the tail light of the stouffer Stepwedge-step 8 onwards should be solid. Check the developing parameters if the reading is not right.
• Check the compatibility of the developer and finisher
• Check the exposure
  

Plate packing

• Refer the machine manual
• Always measure the plate thickness and the packing material thickness
• Add soft packing
• 30% of the plate-failure is because of the wrong packing
  

Plate & Blanket pressure

• Refer the machine manual
• Check the pressure by following methods
• Filler gauge method
• Check the dot gain
• Check with ink dab method
  

Plate & Blanket Cylinder Condition

• Check the chrome plating
• Check whether the packing slips from the cylinder surface
• Fill up the dents immediately
  

Inking & Dampening forme roller shore hardness

• Forme roller - 25 to 30
• Distributor - 35
• Dampener roller core - 25 to 30 use maintenance wash
  

Inking & Dampening roller setting

• Check the setting with the help of ink strip method for inkers
• For dampeners Check with the help of Filler Gauge
  

pH of the fountain solution

• pH should be in the range of 4.5 to 5.5
• Too acidic or too alkaline pH would reduce the run length drastically
  

Paper fluff

• Clean the blanket frequently
• Check the pH of the paper
  

Plate cleaners

• Avoid usage of kerosene
• Use compatible plate cleaner
  

Ink grinding

• Check the ink grinding
• Replace if the grinding is poor
  

Poor desensitization

• Use factory made gums
• Use compatible gums
  

Usage of non compatible chemicals

• Use only compatible plate cleaners and fountain solutions
  
  

Press lighting

• Avoid actinic light falling on the plate
  

Blanket shore hardness

• Maintain the blanket well
• Rejuvenate the blanket in time
• Use maintenance washes