In daily production on KBA series presses, dirtying, piling, and ghosting on the plate are among the most common problems encountered by press operators and maintenance personnel. These German-built presses offer a wide range of format sizes, feature advanced DriveTronic independent drive technology, and come with highly compatible automated configurations. If not addressed promptly, the issue can range from affecting registration accuracy and print quality to causing extended downtime in severe cases.
I. Fault Symptoms: Non-image areas of the plate become dirty, dots are lost (ghosting), or the entire plate becomes plugged (piling), with an imbalance in the ink-water relationship.
II. Cause Analysis: Improper dampening solution acidity/pH, insufficient water volume, low ink viscosity, severe emulsification, insufficient plate exposure/development, and excessive or insufficient dampening roller pressure causing smearing. Given the wide format range, advanced DriveTronic independent drive technology, and highly compatible automated configurations of these German presses, priority should be given to checking key components and standard parameters during troubleshooting.
III. Treatment Steps: Stabilize the pH of the dampening solution and increase water volume for a trial run; adjust ink viscosity or change the ink formulation; re-expose the plate and recheck exposure and development; calibrate dampening roller pressure and clean the roller nap cloth.
IV. Preventive Measures: Stabilize dampening solution specifications, control emulsification rate, and standardize the plate-making process. The above methods also apply to models such as the Rapida 105, Rapida 106, Rapida 145, and Rapida 75. For practical operation, refer to the ErgoTronic control console / QualiTronic inline inspection system and on-site conditions. For complex situations, it is recommended to contact professional maintenance support through the printm.cn platform.
