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CL-S6621 3-62
Removing Ribbon Wrinkles
The following explains the general procedure for removing ribbon wrinkles.
Adjusting points:
• Ribbon tension
• Ribbon Left-Right Balance Adjustment Knob (Front) - Ribbon slant
• Ribbon Left-Right Balance Adjustment Knob (Rear) - Ribbon slant
• “Shaft, Ribbon Guide” (a part of the “SA, Head”) - Ribbon slant
How to check ribbon wrinkles:
• Visual check
Adjustment procedure:
First, adjust the ribbon tension and then the ribbon paths (front/rear) to remove ribbon wrinkles.
(1) Ribbon slant elimination adjustment
Ribbon is fed from the supply side and taken up on the take-up side via the “SA, Ribbon
Tension Shaft R” and the “SA, Ribbon Tension Shaft F”. (See the figure on the next page.)
1. Adjust the Ribbon Left-Right Balance Adjustment Knob (Front) and then the Ribbon
Left-Right Balance Adjustment Knob (Rear) to remove ribbon wrinkle.
Refer to “
3-7-2(1) Ribbon slant elimination adjustment”.
(2-1) Visual check and adjustment
Checking the ribbon surface visually is a good way to see whether the ribbon wrinkles or
not. You can find wrinkles by the reflected light on the ribbon surface. Check both take-up
side and supply sides of ribbon. (See the figure on the next page to find the places where
wrinkles may appear.)
NOTE: For removing wrinkles, front side adjustment is more effective than the rear side
one
.
1. Perform test print in self print mode. (Refer to “2-3-2-(2-1) Self print mode”.)
2. Visually check the take-up side for ribbon wrinkles.
Since ribbon is taken up stronger on the shorter ribbon path side, wrinkles appear on
the longer path side. During printing the self print patterns, check wrinkles and correct
the ribbon travel as follows:
• If wrinkles are found on the left side (“a” in the figure), turn the Ribbon Left-Right
Balance Adjustment Knob (Front) clockwise.
• If wrinkles are found on the right side (“a’ “ in the figure), turn the knob
counterclockwise.
• If wrinkles are found at around center, find the side (either front or rear) and turn the
knob accordingly.
3. Visually check on the supply side for ribbon wrinkles.
Since ribbon is pulled stronger on the shorter ribbon path side, wrinkles appear on the
longer path side.
During printing the self print patterns, check wrinkles and correct ribbon travel as
follow:
• If wrinkles are found on the left side (“b” in the figure), turn the Ribbon Left-Right
Balance Adjustment Knob (Rear) counterclockwise.