Adjusting The Ribbon Tension Balance - SATO S84ex Operator's Manual

6.8 Adjusting the Ribbon Tension Balance

If the ribbon is not spread smoothly over the print head, print voids will occur at the point of the ribbon
fold. Typically, this is the result of the axis of the ribbon spindle, print head and the ribbon adjustment
plate not being perfectly parallel.
Required tool:
Phillips screwdriver
The adjustment procedure for the ribbon tension is as follows:
1
Open the top cover of the printer.
2
Turn the head lock lever clockwise to unlock the print head.
3
Locate two screws  from the front of the print head assembly.
4
Loosen two screws  attached to the ribbon adjustment plate .
Do not remove the screws.
5
Adjust the ribbon adjustment plate  as shown below.
• Adjust the left side of the plate upward when a wrinkle occurs on the right.
• Adjust the right side of the plate upward when a wrinkle occurs on the left.
6
Hold the ribbon adjustment plate  in the set position and tighten two screws .
7
Perform a test print to check the printing quality.
The ribbon must not be wrinkled or meander.
8
Repeat the procedure from steps 1 through 6 until the ribbon tension is even on both
sides.
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6 Cleaning and Performing Printer Adjustments
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S84-ex/S86-ex Operator Manual
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