Specifications

7.3 Shuttle Movement Amplitude Adjustment
The initial amplitude setting is based on observation of shuttle movement
on an active print actuator module, and is a coarse adjustment.
1. Gain access to the print actuator modules by setting the power switch
OFF, disconnecting the power cable, removing the ribbon cartridge,
and swinging back the shroud cover (Section 6.8). Note the three
print actuator modules: each one has a display label on it as shown
in Figure 7–2A.
Figure 7–2: Print Actuator Module Display Label (Inactive and Active)
Example #1
Example #2
A.MODULE INACTIVE B. MODULE ACTIVE
PROPERLY ADJUSTED
RE_UK00285M_89
2. The print shuttle must be set active (shuttle drive motor ON) by
setting jumper J7/J8 to the J8 position on the SMMC board. Access
and remove the SMMC board (see Section 6.25), change the jumper
to J8, then reinstall the SMMC board in the proper slot.
3. Connect the power cable, set the power switch to ON; the print
shuttle should be active.
4. Observe any one of the display labels. An X (intersecting the
horizontal line) should appear on the label (see Figure 7–2B). The
X indicates that the drive signal amplitude (left and right shuttle
movement) is approximately equal.
5. If the display label looks like Figure 7–2B, proceed to step 8.
7–4 PRINT QUALITY ADJUSTMENT PROCEDURES