Canon GP160DF - Page 478

2-20
CHAPTER 2 STANDARDS AND ADJUSTMENTS
4) Measure the distance from the ruled line on sample A and sample B to the edge of
the paper. The distances to be measured are a
1
, a
2
, a
3
, b
1
, b
2
and b
3
.
Figure 2-25
5) Make sure that the following values conform to the standard. If the values are out-
side the standard values, adjust the image position.
Right and left registration: a
1
- b
1
= 0 ± 1 mm
Leading edge registration: a
2
- b
2
= 0 ± 1 mm
Sub-scanning direction magnification: (a
2
+ a
3
) - (b
2
+ B
3
) = 0 ± 1 mm
a3
a2
a1
Sample A
b3
b2
b1
Sample B