Applicable Systems
Lithrone G40
Symptoms
The printing press reports a fountain solution pH anomaly. The pH of the dampening solution is outside the acceptable range.
Possible Causes
- Fountain solution concentrate ratio incorrect
- Contamination from ink or cleaning solvents
- Fountain solution tank algae or bacterial growth
Troubleshooting Steps
- Step 1: Check the fountain solution pH with a meter
pH is within the 4.5 to 5.5 range - Step 2: Verify the concentrate mixing ratio
Ratio matches the supplier specification - Step 3: Clean and sanitize the fountain solution system
System is clean and free of contamination
How to Reset
To reset: Correct the fountain solution pH, then clear the alarm.
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Source: Komori Lithrone Operating Manual, Komori Corporation
Category: Printing
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