Service manual

AR-235/275 ADJUSTMENTS - 9
∗
When the lens unit is moved, execute the OC main scanning magni-
fication ratio auto adjustment, SIM 48-1-1, SIM48-3 and the SPF
original off-center adjustment.
∗
This adjustment is basically O.K. with SIM 63-7.
C. Image density (exposure) adjustment
(1) Copy mode (SIM46-2)
1) Set a test chart (UKOG-0162FCZZ) on the OC table as shown
below.
2) Place three or more sheets of A3 (11" x 17") paper on the test
chart.
3) Execute SIM 46-2.
4) After warm-up, shading is performed and the current set value of
the density (exposure) level is displayed on the display section in 2
digits.
For mode selection, use the [10-key].
5) Change the set value with the [10-key] to adjust the copy image
density.
6) Make a copy and check that the specification below is satisfied.
Note: Place originals in the rear reference, and the test chart in the
front reference when adjusting the exposure.
<Adjustment specification>
Density
mode
Display
Lamp
Exposure
level
Sharp Gray
Chart output
Set value
Setting
range
AUTO AUTO
–
"3" is
copied.
If too bright,
increase the
quantity
displayed on
the copy
quantity
display.
If too dark,
decrease the
quantity
displayed on
the copy
quantity
display.
0 – 99
TEXT TEXT
3
"3" is
copied.
TEXT/
PHOTO
TEXT/
PHOTO
3
"3" is
copied.
PHOTO PHOTO
3
"3" is
copied.
SUPER
PHOTO
SUPER
PHOTO
3
"3" is
copied.
TONER
SAVE
AUTO (TS)
3
"3" is
copied.
TEXT (TS)
3
"3" is
copied.
TEXT
PHOTO (TS)
3
"3" is
copied.
Rear
Front