Epson Stylus Pro 5000 Service Manual page 204

Stylus Pro5000
Step4. Loosen 2 parallelism adjustment bushes on both sides once.
Figure below shows the position of fixing screw for
adjustment bush at the right side. (Refer to figure5-55 for the
fixing screw at the left side.)
Figure 5-57. Fixing Screw for Parallelism Adjustment Bush (Right Side)
Rev. A
Fixing screw for Parallelism
Adjustment Bush at right side
PG gets narrower
PG gets wider
Step5. Set the 1mm thickness gage, matching it with the right edge
of A3 glossy paper.
Step6. When moving the carriage, holding the timing belt by your
hand but not touching the carriage unit directly, move the
parallelism adjustment bush upward gradually, until the 1mm
thickness gage is interfered and stars moving.
Step7. Move back the parallelism adjustment bush one notch toward
the direction that PG becomes wider, based on the position
that the thickness gage moved.
Step8. Place the thickness gage, matching it with the left edge of A3
glossy paper, and repeat the procedure Step5 through Step7
until adjustment is completed.
Step9. Set the 1mm thickness gage, matching it with the right edge
of A3 glossy paper again. Holding the timing belt with your
hand, and make sure that the thickness gage does not move
when the carriage unit moves to right side.
If it moves, repeat Step5 through Step9.
Step10. Remove the glossy paper and tighten both left and right fixing
screws for parallelism adjustment bush.
Step11. Install the upper case.
Step12. Check the printing result and complete the operation.
Chapter5 Adjustment
5-36