Adjustments - Sharp AR-FX7 Service Manual

[5] ADJUSTMENTS

Section
1 Density section
2 Communication section
1. Density section
A. FAX mode density adjustment (Overall mode)
(<FAX mode> SIM 46-12)
1) Set the test chart (TPAP-2109SCZZ <CCITT #3 chart>) on the OC
table as shown below, and close the OC cover.
Glass holding plate
2) Switch to the FAX mode and execute SIM 46-12.
3) After warming up, shading is performed and the current density
level is displayed on the lower two digits of the display section in
standard and auto density mode.
4) Enter the set value with the 10-key to adjust the FAX image den-
sity.
5) Make a copy, and adjust so that the following adjustment specifica-
tion is satisfied.
∗
When an adjustment is made in this mode, the exposure level for
each communication mode and each density mode are automatically
adjusted accordingly.
<Adjustment specifications>
CCITT #3
Density Resolution
SIM chart output
mode mode
Auto Standard FAX "3" is slightly
mode copied.
46-12
Adjustment items
A FAX mode density adjustment (Overall mode)
B FAX mode density adjustment (Individual mode)
A Dial test
Set value
range
result
The greater the 0 – 99
set value is, the
greater the density
is, and vice versa.
AR-FX7 ADJUSTMENTS 5 - 1
B. FAX mode density adjustment (Individual mode)
(<FAX mode> SIM 46-13 – 16)
1) Set the test chart (TPAP-2109SCZZ <CCITT #3 chart>) on the OC
table as shown below, and close the OC cover.
Glass holding plate
2) Switch to the FAX mode and execute SIM 46-13 to 46-16 depend-
ing on the adjustment mode.
3) After warming up, shading is performed and the current density
level is displayed on the lower two digits of the display section.
4) Enter the set value with the 10-key to adjust the FAX image den-
sity.
5) Make a copy, and adjust the density with the copy as a reference.
<Adjustment specifications>
Resolution Density
mode changeover
Standard Switched with the
density select
key.
Fine Switched with the
density select
Set
key.
Super fine Switched with the
density select
key.
Ultra fine Switched with the
density select
key.
Adjustment procedures
<FAX mode> SIM 46-12
<FAX mode> SIM 46-13 – 46-16
<FAX mode> SIM 66-14, 66-16
SIM Set value
FAX The greater the
mode 46- set value is, the
13 greater the density
is, and vice versa.
FAX
mode 46-
14
FAX
mode 46-
15
FAX
mode 46-
16
Set
range
0 – 99