Epson DFX-8500 Service Manual page 162

DFX-8500
Step 4: Using the carriage guide shaft gear, attach the both dial gauge needles to the platen surface.(The
needle doesn't reach the end of the stroke).
Step 5: Measure the angle difference about three position such as figure below.(Using the CR motor
pulley to move the carriage with the dial gauge toward the right side. See Figure 4-11.)
4-10
Figure 4-14. Attaching Two Needles to Platen Surface
Figure 4-15. Measuring Angle Difference 1
Rev. B