Sharp AR-280 Service Manual page 67

Test chart comparison
UKOG-0162FCZZ
1 2 3
DENSITY No.
UKOG-0089CSZZ
0.1 0.2
DENSITY No.
KODAK GRAY
1
SCALE
SHARP
CORPORATION
MADE IN JAPAN
(2) Density adjustment procedure
a. Collective adjustment of two or more copy quality modes
Normally this adjustment is performed with SIM 46-2 and SIM 46-3. In
this method, two or more copy density adjustments in different modes
can be adjusted collectively.
1) Execute SIM 46-2 and SIM 46-3.
(AR-280/285/335)
(Binary value mode)
Quality mode
AE3.0 (AE)
CH3.0 (Character)
MIX3.0 (Character/Photo)
PH3.0 (Photo)
(AR-250/281/286/287/336/337/405/407)
Quality mode
AE3.0 (AE)
CH3.0 (Character)
MIX3.0 (Character/Photo)
PH3.0 (2)
(AR-501/505/507)
(Binary value mode)
Quality mode
AE3.0 (AE)
CH3.0 (Character)
MIX3.0 (Character/Photo)
PH3.0 (Photo)
2) Press the COPY button to make a copy.
Check that the copy density is as shown in the table below. If not,
change the adjustment value.
·
Adjustment spec
Chart
Mode EXP
No.
Character
3 3
Character
3 3
/Photo
Photo
3 3
Auto
3
If the copy density is too light, increase the adjustment value.
If the copy density is too dark, decrease the adjustment value.
Adjustment range: 30 ~ 170
4 5 6 7 8 9 10
0.3 0.5 1.9
2 3 4 19
Linked simulation data
Sim46-9
Sim46-10
Sim46-11
Linked simulation data
Sim46-9
Sim46-10
Sim46-11 (Photo error diffusion)
Linked simulation data
Sim46-9
Sim46-10
Sim46-11
Adjustment Chart Adjustment
level No. level
Copied. Not copied.
2
Copied. Not copied.
2
Copied. Not copied.
2
Copied. Not copied.
2
b. Individual adjustment of each copy quality mode
This adjustment is used when a different density level for different
copy quality mode is required. SIM 46-5 to -7 and SIM 46-9 to -11 are
W
used.
1) Execute the simulation corresponding to the copy quality mode to
0
be adjusted.
A
2) Press the COPY button to make a copy.
Check that the copy density is as shown in the table below. If not,
change the adjustment value.
For the auto mode, there is only one adjustment value. For the
other modes, the adjustment value for each density level must be
adjusted.
(3) SPF/RSPF exposure adjustment procedure
(Employed chart)
UKOG-0121FCZ3 for inch series
UKOG-0121FCZ4 for AB series
Make a copy of the chart in the AE exposure OC mode.
Make a copy of the chart in the SPF/RSPF mode.
Compare the above two copies to check that the difference is within
0.5 scale. If the difference is more than 0.5 scale, adjust with SIM
46-20.
(SPF)
(RSPF)
When the SPF/RSPF is darker, increase the value.
When the SPF/ RSPF is lighter, decrease the value.
6 – 17 7/13/2000