Epson FX-1180 - Impact Printer, Service Manual

Page: 97 / 156

Adjustments
EPSON FX-880/FX-1180 Service Manual
4-3
7.
Move the carriage assembly to the right edge.
8.
Slightly loosen the hexagonal nut securing the PG adjust lever and the CR guide shaft.
9.
Set the thickness gauge to 0.38 mm and insert it between the printhead and platen.
10.
Insert a screwdriver into the countersunk hole located on the left side of the CR guide shaft and turn the
screwdriver until the platen and the printhead touch each other lightly.
11.
Move the carriage assembly to the left edge.
12.
Insert the thickness gauge (0.38 mm) between the printhead and platen.
13.
Insert the screwdriver into the countersunk hole and turn the screwdriver until the platen and printhead touch
each other lightly.
14.
Continue performing adjustment steps 10 through 13, rotating the parallelism adjustment bushing until the
parallelism gap is correct on each end. The difference between the right and left gaps should be less than
0.02 mm.
15.
Move the carriage assembly to the center of the printable area.
16.
Insert the thickness gauge between the printhead and the platen, and rotate the CR guide shaft until the
platen gap is 0.365
±
0.015 mm.
0.365+/-0.015
Platen
Printhead
Figure 4-3. Platen Gap
17.
When the adjustment is complete, re-tighten the hexagonal nut on the PG adjust lever.
18.
Remove the printhead and install the ribbon mask.
19.
Re-install the printhead in the carriage assembly.
CAUTION
Do not rotate the platen during adjustment.