2AV/X
1-6-30
1-6
(6) Adjusting the position of the ISU (reference)
Perform the following adjustment if the leading and trailing edges of the copy image are laterally skewed (lateral
squareness not obtained).
Caution:
• Be sure to perform “(4-1) Adjusting the skew of the laser scanner unit” (page 1-6-26) first.
• Before making the following adjustment, output a VTC-PG2 pattern in maintenance item U993 to use as the original for
the adjustment.
Procedure
Refit the contact glass.
Remove the contact glass and adjust
the lateral squareness of the ISU by
rotating the pin.
For copy example 1, rotate the pin in
the direction of the black arrow (\).
For copy example 2, rotate the pin in
the direction of the white arrow (e).
Yes
No
Press the start key and make
a test copy at 100% magnification.
Start
End
Is the image correct?
Place the original
on the contact glass.
Pin
Figure 1-6-46
Figure 1-6-45
Correct image
Copy
example 1
Copy
example 2
