Service manual

4.1.8 Platen Gap Adjustment
This adjustment is required when the carriage unit is replaced or removed from the printer mechanism. Adjust
the distance between the printhead nose and the paper surface to 1.1 mm.
1. Attach a thickness gauge (commercially available) to the left side adjustment position on the paper guide
plate, as shown in the figure below, so that one side hooks the paper feed pinch roller unit.
2. Move the carriage unit manually onto the thickness gauge.
Table 4-2. Gap and Adjustment Direction
Gap between Head Nose and Gauge Surface Left Bushing Right Bushing
Narrow CW CCW
Spread CCW CW
3. Rotate the parallelism adjustment bushing, attached to the left and right ends of the carriage guide shaft,
when the black and color printheads contact the thickness gauge.
4. After attaching the printheads to the gauge surface, verify that the gap between the carriage roller and the
front frame is less than 0.04 mm. (See Figure 4-18.)
5. Attach the 1.1 mm thickness gauge to the right side adjustment position on the paper guide plate, as
shown below, so that one side hooks the paper feed pinch roller unit.
Bushing
Right Adjustment Position
Left Adjustment Position
Paper Guide Plate
Pump Unit
Front Frame
Thickness GaugeThickness Gauge
Platen
Attach the thickness gauge
under the PF pinch roller unit.
FRONT
Platen
PF Pinch Roller
Unit
Front Frame
Paper Guide
Tension Roller
Thickness Gauge
Attachment Point
Figure 4-17. Adjusting the Paper Gap
Stylus Pro XL+ Service Manual Adjustment
Rev.A 4-19