Epson Stylus 1500, Service Manual

Page: 108 / 185

Platen Gap (PG) Adjustment
This adjustment is required after the carriage unit is 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.
CAUTION
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
±
0.02 mm.
Table 4-2. Gap and Adjustment Direction
Gap Between Head and Gauge Surface Is: Turn Left Bushing: Turn Right Bushing:
Too Narrow Clockwise (CW)
Counterclockwise
(CCW)
Too Wide
Counterclockwise
(CCW)
Clockwise (CW)
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.
Thickness Gauge
Figure 4-2. Thickness Gauge Position
Adjustments
EPSON Stylus 1500 Service Manual 4-5