Platen Gap (Pg) Adjustment - Epson Stylus 1500 Service Manual

Adjustments

4.1.1 Platen Gap (PG) Adjustment

This adjustment is required after the carriage unit has been removed from the printer mechanism or replaced.
Adjust the distance between the printhead nose and paper surface to within 1.14 ~ 1.18 mm.
1. To prepare for the adjustment, set the platen gap adjust lever to +, set the left parallelism adjustment
bushing to its lowest position in the adjustable area, and set the right parallelism adjustment bushing to
its highest position in the adjustable area.
2. Insert a thickness gauge (Use a commercially available gauge; for example, you can combine a 1.0 mm
blade, a 0.1 mm blade, and a 0.08 mm blade from the gauge.) in the adjustment position on the left side
of the lower paper guide assembly, as shown in the figure. Then move the carriage unit to the left side of
the printable area.
Only set the black printhead on the thickness gauge. Never let the color printhead touch the
gauge.
3. Set the platen gap adjustment lever to 0.
4.
Adjust the platen gap using the table below. The correct platen gap is 1.16
Table 4-2. Gap and Adjustment Direction
Gap Between Head and Gauge Surface Is:
Too Narrow
Too Wide
5. After adjusting the gap on the left side, perform the gap adjustment on the right side in the same way as
for the left side.
6. Repeat steps 1 to 5 for both sides of printer to create the correct platen gap.
4-2
Thickness Gauge
Figure 4-1. Thickness Gauge Position
Stylus 1500 Service Manual
Turn Left Bushing:
Clockwise (CW)
Counterclockwise
(CCW)
0.02 mm.
Turn Right Bushing:
Counterclockwise
(CCW)
Clockwise (CW)
Rev.A