Troubleshooting Guide - Pressroom UV
On Press Issue: Tinting/Toning
Potential Causes
Improper fountain solution concentrate
Solution: Make a fresh solution to the proper pH and conductivity using the proper percentages of etch and sub. Too much alcohol sub may not be easily detected.
Too much pressure between plate and blanket
Solution: Check and reset to manufacturer's specifications.
Improper setting of dampener or ink rollers
Solution: Check and reset to manufacturer's specifications.
Ink over-emulsified, not sufficiently water resistant
Solution: Consult INX UV tech representative.
Plate improperly exposed or developed
Solution: Check plate making procedure, correct if necessary. Remake plate.
An emulsification or sensitizing agent is being extracted from the paper coating
Solution: Avoid use of wetting agent in the fountain solution. Stiffen the ink as much as possible.
