LASER OPTICS SECTION
24 February, 1999
6-38
6.5.3 SQUARENESS ADJUSTMENT
This procedure finely adjusts the image obliqueness caused by the laser unit.
NOTE: This procedure is used to finely adjust the inclination of horizontal lines in
the image (across the page) by turning the laser unit, which tilts the
scanning line of the laser beam.
1. Print the SP mode test pattern number 1 of SP5-955-018 and measure the
inclination of the horizontal lines on the printout in relation to the normal
position.
NOTE: When the laser unit is not squared, lines in the horizontal scanning
direction are inclined and lines in the feed direction (vertical lines) stand
upright.
2. Loosen the four screws securing the optical housing unit.
3. Remove the pin [A] at the front left side of the optical housing unit.
4. Turn the optical housing unit in the direction of arrow A or arrow B, depending
on the inclination of the lines in the horizontal scanning direction you measured
(see the diagram on the following page for guidelines).
5. Tighten the screws again (4 screws).
A259R111.WMF
[A]
A
B
Summary of Contents for Aficio Color 4006
Page 230: ...SP MODE TABLE 24 February 1999 4 2 4 3 SP MODE TABLE See Appendix 2 ...
Page 359: ...SC TABLE 24 February 1999 7 2 7 2 SC TABLE See APPENDIX 3 ...
Page 364: ...APPENDIX 1 TIMING CHARTS ...
Page 369: ...APPENDIX 2 SP MODE TABLE ...
Page 436: ...APPENDIX 3 SC CODE TABLE ...
Page 467: ...APPENDIX 4 RSS Remote service system ...
Page 479: ...7 A259S101 WMF 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Fig 1 ...
Page 480: ...8 A259S102 WMF 1 2 3 4 5 6 7 8 10 11 12 13 14 9 Fig 2 ...
Page 481: ...9 A259S103 WMF 1 2 3 4 5 7 8 9 10 11 12 14 15 13 6 16 Fig 3 ...
Page 482: ...10 A259S151 WMF 1 2 3 4 5 7 8 10 9 6 11 12 13 14 16 17 18 19 15 Fig 4 ...
Page 483: ...11 A259S105 WMF 1 2 3 4 5 6 7 8 9 10 Fig 5 ...
Page 484: ...12 A259S106 WMF 1 2 3 4 6 7 8 9 5 Fig 6 ...
Page 485: ...13 A259S107 WMF 1 2 3 4 5 6 7 8 10 11 9 Fig 7 12 ...
