4 ] Adjustments - Sharp DM-FX1 Service Manual

[4] ADJUSTMENTS
Section
Density section
1
2 Communication section
1. Density section
A. FAX mode density adjustment (Overall mode)
(<FAX mode> SIM 46-12)
1) Set the test chart (TRAP23109SCZZ <CCITT #3 chart>) on the
OC table as shown below, and close the OC cover.
A4
A4
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
specification is satisfied.
∗ When an adjustment is made in this mode, the exposure level for
each communication mode and each density mode are automat-
ically adjusted accordingly.
<Adjustment specifications>
Den-
Resolution
sity SIM
mode
mode
Auto Standard FAX
mode
46-12
Adjustment items
FAX mode density adjustment
A
(Overall mode)
FAX mode density adjustment
B
(Individual mode)
A Dial test
CCITT
#3 chart Set
Set value
range
output
result
"3" is The greater 1 – 99
slightly the set
copied. value is,
the greater
the density
is, and vice
versa.
B. FAX mode density adjustment (Individual mode)
(<FAX mode> SIM 46-14 – 16)
1) Set the test chart (TRAP23109SCZZ CCITT #3 chart) on the OC
table as shown below, and close the OC cover.
A4
A4
Glass holding plate
2) Switch to the FAX mode and execute SIM 46-14 to 46-16
depending 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 refer-
ence.
<Adjustment specifications>
Reso-
Density
lution
changeover
mode
Fine Switched with
the density
select key.
Super Switched with
fine the density
select key.
Ultra Switched with
fine the density
select key.
4 – 1
DM-FX1
Adjustment procedures
<FAX mode> SIM 46-12
<FAX mode> SIM 46-14 - 46-16
<FAX mode> SIM 66-13
SIM Set value
FAX The greater the
mode set value is,
46-14 the greater the
density is, and
FAX
vice versa.
mode
46-15
FAX
mode
46-16
Set
range
1 – 99