Applicable Systems
Lithrone G40
Symptoms
The printing press reports uneven ink density. The ink coverage across the sheet is not consistent.
Possible Causes
- Ink duct key settings incorrect for the image
- Ink roller temperature variation affecting ink viscosity
- Dampening balance incorrect causing ink emulsification
Troubleshooting Steps
- Step 1: Verify ink duct key settings against the ink profile
Keys are set correctly for the image - Step 2: Check ink roller temperature stability
Temperature is uniform across the ink train - Step 3: Adjust dampening balance for proper ink-water ratio
Ink and water balance is correct
How to Reset
To reset: Adjust ink density settings, then clear the alarm.
Source: Komori Lithrone Operating Manual, Komori Corporation
Category: Printing