Olivetti d-Copia 6500MF Plus Service Manual page 720

(9) Skewed paper feeding check/adjustment
At the paper feed source which a sheet of wrinkled paper has caused, check how the paper is fed askew.
Run U051 to reduce the curvature of paper at the regist roller and measure how the paper is fed askew.
1. Print a maintenance report and note the
U051 value (see page 1-3-43).
2. Reduce the value by 10 for the paper
source in question.
3. Press the system menu button to print a
test chart.
Check the skew value (balance of left and
right, B-A).
Less than 1mm: OK
1mm or more:
Correct the skew by using the paper angle
adjusting mechanism (in cassette) that modi-
fies the angle of the paper width guides.
Procedure
1. Unsecure the fixing screws (screw 1 to 4)
and adjust the angle of the paper width
guide by the skew feed adjustment
screw.
If the B-A is negative, rotate clockwise.
If the B-A is positive, rotate counter-clockwise.
2. Tighten the four screw.
*: Secure the screws in the order of
screws 1, 2, 3, then 4.
3. Run U051 and reset the curvature the regist roller.
Service Manual
Skew value B-A
A
Figure 1-5-228
1-5-140
2N8/2N7
B
Y116520-3