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Figure 12. Ribbon Running Condition
Wrinkles in the ribbon are caused by uneven tension of the ribbon within Part B.
Possible caused of uneven tension are:
• The edge of the ribbon applicator does not align properly to the leading shaft. See
thermal head positioning, Step 8.
• The bottom front edge of the thermal head does not align to the leading shaft.
• Uneven pressure of the thermal head.
• Insufficient or overload pressure of the thermal head.
• Heat shrink of ribbon film.
• Uneven peeling of the ribbon from media (labels).
In some cases, the ribbon condition within Part A causes problems. Possible causes are:
• Leading shaft does not align to the ribbon supply shaft.
• The friction brake is not strong enough to keep the tension on the ribbon in Part
A.