Epson DFX-8500 Service Manual page 163

DFX-8500
12. Measure the distance between the platen and the carriage guide shaft on the left end of the platen. Then
measure the distance between the platen and the carriage guide shaft on the right end of the platen, and
compare the two values. (Figure 4-11 shows the measurement position and the parallelism adjust lever
operation.)
Note: Rotate the carriage motor pulley to move the carriage. Do not touch the dial gauges.
2.8 inches
(70 mm)
13. If the left measurement is greater than the right, move the carriage parallelism adjust lever in the
direction shown by the white arrow in Figure 4-11. If the right measurement is greater than the left,
move the lever in the direction shown by the black arrow.
14. Repeat steps 11 and 12 until the difference between the distance measured at the two positions is less
than + 0.015 mm.
15. When the difference is within the specified range, tighten the 2 screws (CP (PS), M4×6) securing the
parallelism adjustment lever. Then measure the distances again as described in step 11.
16. If the difference is within the specified range, apply a screw-locking compound to the two screws. (See
Section 6.2 for lubrication and adhesive application instructions.)
17. Perform the platen angle adjustment (See Section 4.7.)
4-8
Carriage Guide Shaft Gear
Figure 10a. Carriage Guide Shaft Gear Positioning
Figure 4-11. Carriage Guide Shaft Parallelism Adjustment
Stopper
Platen Gap Transmission Gear
2.8 inches
(70 mm)
Right Side Frame
Carriage Parallelism
Adjust Lever
Carriage Motor
Motor Pulley