Citizen CL-E700 Series - Page 149

Chapter 3 Disassembly and Maintenance
3-7. Adjustments
3-63 CL-E700 series
(3) Adjustment on the front side
NOTE: To eliminate ribbon 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(1) Self print mode”.)
2. Visually check ribbon wrinkles on the front side (take-up side).
Since the 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 clockwise.
• If wrinkles are found on the right side (“a’ ” in the figure), turn the knob
counterclockwise.
• If wrinkles are found at around the center, find on which side the wrinkles are, and
turn the knob accordingly.
3. Be sure that the adjusted position in Step 2 is at around the center of the scale
(adjustable range) of the Ribbon Left-Right Balance Adjustment Knob. (The center of
the scale shows the mechanical center of the Knob.)
NOTES:
1. If the adjusted position of the Knob is off-center widely or wrinkles cannot be
removed, the “Cam Tension Base Adjust” position may be wrong.
In this case, refer to “
3-7-2(2) “Cam Tension Base Adjust” position adjustment” and
perform adjustment according to “3-7-2(2-1) Front side “Cam Tension Base Adjust”
position ad
justment (For service personnel)
”.
2. Perform ribbon guide adjustment to eliminate ribbon wrinkles, as required. Refer to
“3-7-2(3) Ribbon guide position adjustment (with a part of the “SA Head”)”.
4. Proceed to the next item.
A
A’
A
A’
b
a’
b’
a
Ribbon
Ribbon Left-Right Balance
Adjustment Knob