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.
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