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3.6 Run Job and Evaluate Tension and Guides
You are now ready to run your job.
1. Switch on the Matrix.
2. Switch on either the Upper Rewind, Lower Rewind or both.
3. Set the tension on the Upper Rewind and Lower Rewind to 50%.
4. Set the tension on the Matrix to 0%.
5. Set the Master speed to the lowest value.
6. Switch on the master switch.
7. Slowly turn up the master speed.
Once the system is running you should evaluate the tension and the roller guides.
Evaluate Tension. The web should be tight at all points along the paper path. You can increase
the tension of any of the mandrels. While the system is running, slowly turn the knob to increase
tension
•
Too little tension will cause the web to gather slack. Over time this will cause a jam and
stop the job. It will also create loose finished rolls.
•
Too much tension can cause a web break. The most likely place for this to occur is at
the weeder.
If the web breaks the job stops. Web break detection occurs when a sudden change in
web tension is detected on any of the 3 or 4 media mandrels.
Note on label curling: If finished labels are curling or peeling up or under on the edges this is
an indication that tension on the web is not balanced. Decrease tension on the supply mandrel
or lamination mandrel if labels are curling up. Increase tension if they are curling under.
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