Read Sharp AR-C170 (serv.man31) Service Manual online
AR-C170M PRINTER CONTROLLER SECTION 14 - 15
Find out the density point in the test pattern array 1 which lies
between the Lower Limit and the Upper Limit of the test chart
(1).
between the Lower Limit and the Upper Limit of the test chart
(1).
Put a check mark on the density point found in the procedure
above.
above.
If there is no density point which satisfies the above condition
in test pattern array 1, perform the following procedures.
in test pattern array 1, perform the following procedures.
• When the test chart (1) density is higher than the maximum
density (+4) in the array 1:
→
Put a check mark on "+4" in the array 1.
• When the test chart (1) density is lower than the minimum
density (–4) in the array 1:
→
Put a check mark on "-4" in the array 1.
For densities of Test chart (2) to (12), perform the same proce-
dure as procedure 6).
dure as procedure 6).
7) Set the adjustment points (+4 to –4 on the right side) corre-
sponding to the density points (12 positions) marked with
check mark on the test pattern on the adjustment menu.
check mark on the test pattern on the adjustment menu.
8) Press the OK key. (The adjustment values are set.)
Adjustment menu
Operating procedures
• Use the
and
keys to select the color (Y, M, C, or Bk)
in “LOW AREA”, “MIDDLE AREA” or “HIGH AREA” that you
wish to adjust.
wish to adjust.
• Use the
and
keys to select the density level (+4 to –
4) that matches the density level in the standard color chart.
• Use the
key to return all values to the default settings.
• To adjust all values simultaneously, select “ALL” with the
key and then adjust the values with the
and
keys.
When there is no density point that corresponds to the center
between the Lower Limit and the Upper Limit in the test pattern in
procedures 6) and 7), or when "+4" or "–4" adjustment point is set:
between the Lower Limit and the Upper Limit in the test pattern in
procedures 6) and 7), or when "+4" or "–4" adjustment point is set:
Repeat procedures 4) to 8) until a density pattern that corresponds
to the center of the Lower Limit and the Upper Limit of the test
chart appears in the test pattern.
to the center of the Lower Limit and the Upper Limit of the test
chart appears in the test pattern.
(2) Easy calibration (Gray balance adjustment)
1) Enter the key operator program mode.
2) Select "Printer setting."
3) Select "Color adjustments."
4) Select "Easy calibration adjustments."
5) The display below is shown. Select A4 or 8.5" x 11" size
paper, and press the EXECUTE key.
The test pattern for adjustment is printed, and the adjustment
menu is displayed.
menu is displayed.
The test patterns A and B show the process gray with the cur-
rent adjustment value as the reference value (±0).
rent adjustment value as the reference value (±0).
In the X-axis, the Magenta density is varied in 7 steps of –3 to
+3. (Test pattern 2 in –3 to ±0, Test pattern 3 in ±0 to +3)
+3. (Test pattern 2 in –3 to ±0, Test pattern 3 in ±0 to +3)
In the Y-axis, the Yellow density is varied in 7 steps of –3 to
+3.
+3.
The Cyan density is fixed.
C
M
Y
Bk
Low Density
Mid Density
High Density
C
M
Y
Bk
C
M
Y
Bk
AR-C260 Color Chart
Lower
Limit
Limit
Upper
Limit
Limit
(12)
(1) (2)
O K
KEY OPERATOR PROGRAMS
COLOR BALANCE
C M Y Bk
C M Y Bk
C M Y Bk
ALL
LOW AREA
MIDDLE AREA
HIGH AREA
EASY CALIBRATION
COLOR BALANCE
TEST PRINT
KEY OPERATOR PROGRAMS
COLOR ADJUSTMENTS
Test Pattern A
Test Pattern B
Magenta
(-3~
(-3~
±
0)
Magenta
(
(
±
0~+3)
Example: if this is
the desired color,
select “+1” for X
and “-2” for Y.
the desired color,
select “+1” for X
and “-2” for Y.
Yellow
(-3~+3)
(-3~+3)
Yellow
(-3~+3)
(-3~+3)
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