Figure 9-8 Setting X-Axis Rail-To-Drum Parallelism - Tektronix Phaser 380 Service Manual

Lock
screw
access
hole
Plastic
plug
Access hole
in frame
Alignment
marks
Head roll
adjust nut

Figure 9-8 Setting x-axis rail-to-drum parallelism

12. Fine Adjustment. Move the x-axis carriage to the far right position.
13. Attach and lock the X-axis rails alignment tool to the left extreme end
of the X-axis rails (position 1). Check and zero the reading.
14. Attach and lock the X-axis rails alignment tool to the right extreme
end of the X-axis rails (position 2). Check the reading.
15. Using the roll adjuster on the right side of the X-axis, set the x-axis
drive/drum parallelism so the difference between the left and right
alignment readings is less than 0.003 inches.
Mounting
bolts (or nuts)
16. Carefully remove the alignment tool.
17. Reassemble the printer and make a test print. Perform the calibration
adjustments "Adjusting the image position (margins)" on page 9-26,
"Adjusting scale and skip factors" on page 9-28 and "Adjusting the
vertical interleave (scan shift)" on page 9-34.
Alignment
tool at right
end of drum
Position 2
Parts omitted
for clarity
Checks and Adjustments
Position 1
Head angle
adjust nut
(Never
change)
9661-109
Service Manual 9-15
9