Ricoh G104 Service Manual page 59

5. Open the left cover
Adjust the skew adjustment cam [A]
6.
for each color with a screwdriver. You
must adjust the skew values for each
color until they are all the same as the
original value for magenta that you
found in step 1, before you replaced
the LDU.
Example, if the new value for K (after
step 4) is –300 and the old value for
magenta (in step 1) is –250, you must
adjust the skew for K until it is –250.
Adjustment Procedure:
Turn the cam as shown in the "Cam
Rotation Direction" (table below) to
increase the skew value.
Turn in the opposite direction to decrease the skew value.
"Adjustment value" shows the change when you turn the cam "one click".
Cam Rotation
Color
Direction
Yellow CW
Cyan CW
Magenta CCW
Black CCW
NOTE: The adjustment values in the table are not exact values. These are
approximate values.
CW: Clockwise, CCW: Counter-clockwise
The diagram to the right shows
the effect on line skew [B] when
you turn the cam in a counter
clockwise direction.
7. Close the left cover. Then measure
the skew values again with SP 2111 3.
(To do this, repeat step 3.) If these are
close to the value for magenta that
you found in step 1 (within one click in
the above table), go to the next step. If
not, do SP 2111 3 again until you get
a good result.
8. Do SP 2111 1 to finely adjust the line
position for each color. Try SP 2111 2
if "Result = OK" does not show.
9. When you get "Result = OK", this
adjustment is completed.
SM
CÓPIA NÃO CONTROLADA
[A]
Adjustment
value
14 µm
8 µm
7 µm
10 µm
3-9
CÓPIA NÃO CONTROLADA
LASER OPTICS
G105R902.WMF
Y
C
M
K
G105R903.WMF
Y
C
M
K
[B]
G104