3-6. Adjustments
CLP-621 & CLP-631 3-52
3-6-3. Ribbon Tension Adjustment
This adjustment should be done in the following cases:
• When ribbon running is abnormal.
• When the Ribbon Sensor F/R Unit or one of its parts is reassembled.
1. Turn the Ribbon Left-Right Balance Adjustment Knobs (Front) to the center of the scale.
2. Turn the Ribbon Left-Right Balance Adjustment Knob (Rear) to the center of the scale.
3. Set the Tension Adjustment Knobs (Front/Rear) to the positions marked with
T (Max.
tension).
4. Remove the Ribbon Tension Adjustment Cover on the front and rear sides for checking the
lighting status of LED (D901).
5. Turn ON the printer.
6. Place the spring gauge on the front side knob as shown in the figure and apply 350 to 380g
force onto the knob. At this time, be sure that the LED changes from ON to OFF.
7. Place the spring gauge on the rear side knob as shown in the figure and apply 350 to 400g
force onto the knob. At this time, be sure that the LED changes from ON to OFF.
8. If satisfactory results are obtained, turn OFF the printer.
If not, proceed to Step 9.
D901
D901
350 - 400g
350 - 380g
Tension Adjustment Knob
(Front)
Tension Adjustment Knob (Rear)
Front Balance Adjustment Knob
(Center)
Back Balance Adjustment Knob
(Center)
Tension Sensor SA
(Ribbon Sensor R Unit)
(Ribbon Sensor F Unit)
Strong
Weak
Strong
Weak
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General
Weight and Dimensions
