4.1.7 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 4-16.)
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.
Note: When checking the gap between the carriage roller and the front frame, use the thickness
gauge or the paper guide plate. If the gap is correct the gauge cannot be installed into the
gap. If the gap is incorrect, the gauge can be inserted in the gap.
Attach the thickness gauge
under the PF pinch roller unit.
Left Adjustment Position
Right Adjustment Position
Paper Guide Plate
Bushing
Pump Unit
Eject Frame
Thickness Gauge
Thickness Gauge
Front
Front Frame
PF Pinch Roller
Unit
Attachment Point
Tension Roller
Thickness Gauge
Paper Guide
Platen
Figure 4-18. Adjusting the Platen Gap
Adjustments Stylus Pro XL
4-16 Rev. A
