SATO CL412E service manual Ribbon Unwind Clutch Adjustment

Section 5. Mechanical Adjustments

Ribbon Clutch Adjustments

5.2.2 Ribbon Unwind Clutch Adjustment

STEP PROCEDURE

1.Switch the printer OFF and disconnect the power cable.

2.Raise the top access door and open the front access door. Remove the ribbon and label stock if installed. Fig. 5-1

3.Attach string to an empty ribbon core and place on the Ribbon Unwind Spindle. Wind the string tightly around the ribbon core in a single layer and in in counter-clockwise direction. Attach the free end of the string to the tension gauge. Fig. 5-3

4.Gradually lift the tension gauge, pulling the string to unwind it from the core. Once the spindle begins to move, the gauge should indicate 450 to 550 grams of tension. Excessive or insufficient tension must be corrected by adjusting the Ribbon Unwind Clutch.

5.To adjust the clutch, loosen the locking screw and move the adjust nut CW for more tension and CCW for less tension. Tighten the locking screw and repeat steps 3 and 4 until the correct tension is achieved.

Page 5-4 SATO CL408e/CL412e Service Manual

PN 9001078 Rev. BA