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Chapter 5
Troubleshooting & Maintenance
This section highlights troubleshooting and maintenance guidelines for your iColor coater. For addi-
tional assistance, please contact our Uninet Coating Support & Solutions Team .
Coating:
1. If the coating metering controls are set and the nished product appears in need of more coating or
has no coating at all, you will need to increase the Form Roller to Impression Roller pressure.
2. If the coating is better on one side (left or right) than the other, you will need to adjust the Form
Roller to Impression Roller parallel adjustment. (See the Setting the Form to Impression Roller
Pressure section in this Operators Manual)
3.
If you have decreased the Form Roller to Impression Roller pressure and are still getting too much
coating on the job, you will need to adjust the coating metering controls on the Coating Unit.
4. The coating metering controls will generally be run between 2 to 3. There is an adjustment on the
left and right side for ne-tuning the amount of coating. Remember MORE IS NOT BETTER.
5. A larger number on the dial will give you a smaller amount of coating on the job.
6.
If the coating scratches off frequently when tested with your finger nail, it may indicate that your UV
Bulb needs to be replaced. Contact UniNet Customer Service.
7. After running several test sheets, if the printed area looks good but the unprinted area looks like it
requires more coating, you paper may be absorbent. This can be xed by decreasing the coating
unit pressure and/or changing to a higher viscosity coating.
Testing for Absorbent Paper, Toner & Ink
1.
With the iColor coater Belt ON (UV OFF) run and coat one (1) sheet through the iColor coater and
remove it.
2. Set this paper aside for 2 or 3 minutes and then inspect it. If it appears that almost no change has
occurred to the coating, then your print media and paper are not the absorbent type.
3. If either the print media or the paper appears to be losing the coating, then one or the other is
absorbent. This is not a coater problem but a paper or print media problem.
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