Read Sharp AR-235 (serv.man9) Service Manual online
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.
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.
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.
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
PHOTO
TEXT/
PHOTO
PHOTO
3
"3" is
copied.
PHOTO
PHOTO
3
"3" is
copied.
SUPER
PHOTO
PHOTO
SUPER
PHOTO
PHOTO
3
"3" is
copied.
TONER
SAVE
SAVE
AUTO (TS)
3
"3" is
copied.
TEXT (TS)
3
"3" is
copied.
TEXT
PHOTO (TS)
PHOTO (TS)
3
"3" is
copied.
Rear
Front
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