Radio Shack TRS-80 PT-210 Service Manual page 54

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8. Head Lever adjustment
Establish the working position of the Solenoid; then adjust the gap between the head of the Hood
Assembly and the platen.
Attach the two mounting screws
<.
The plunger should move smoothly.
9. Hook the Tension Spring to the Head Lever.
Adjust the Thermal Head pressure with the adjustment Nut
@.
(Refer to Figure 49. Thermal Head
Assembly Replacement.)
10. Adjust the Thermal Head Assembly pressure as follows:
Using a Spring Gauge, push on the bottom of the Thermal Head Assembly at point B.
Adjust the pressure level with Nut
(6).
A pressure level of 150
-
185g should be required to move
the head. (use tension gaze)
NOTE: Item 10 adjustment is related to printing Density. Therefore, this adjustment should be done
with regard to Printing Density Adjustment on the P.C.B. If the Pressure is high. printing should
be dark.

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