Sharp AL-1611 Service Manual page 36

7) Change the mode from the duplex original mode to the simplex
original mode.
"MANUAL" lamp lights up and the current back surface sub scan-
ning direction magnification ratio is displayed in two digits on the
display section.
8) Enter the set value and press the start key.
The set value is stored and a copy is made.
<Adjustment specification>
Mode Specification
Sub scanning
direction magni- Normal
fication ratio 1.0%
(SPF mode)
(7) Off center adjustment (SIM 50-13, SIM 50-16)
a. OC mode
Note: The operation of SIM 50-13 is the same as that of SIM 48-01
(Photo LED ON)
1) Make a test chart as shown below and set it so that its center line is
fit with the original guide center mark.
To make a test chart, draw a line on A3 or 11" x 17" paper at the
center in the paper transport direction.
2) Make a normal copy from the manual paper feed tray, and compare
the copy and the test chart.
If necessary, perform the following adjustment procedures.
3) Execute SIM 50-13.
4) After warmup, shading is performed and the current set value of the
off center adjustment is displayed on the display section in 2 digits.
5) Enter the set value and press the start key.
The set value is stored and a copy is made.
<Adjustment specification>
Mode Specification
Original off
Single:
center mode
Center 2.0mm
(OC mode)
SIM Set value Set range
Add 1:
0.1% increase
SIM
1 ~ 99
48-5
Reduce 1:
0.1% decrease
SIM Set value Set range
Add 1:
0.1mm shift to R
side
SIM
1 ~ 99
50-13
Reduce 1:
0.1mm shift to L
side
AL-1611/AL-1622 ADJUSTMENTS
b. SPF original off-center adjustment <AL-1622 only>
Note: Before performing this adjustment, be sure to check that the
paper off center is properly adjusted.
1) Make a test chart for the center position adjustment and set it on the
SPF.
<Adjustment specification>
Draw a line on a paper in the scanning direction.
2) Make a normal copy from the manual paper feed tray, and compare
the copy and the original test chart.
If necessary, perform the following adjustment procedures.
3) Execute SIM 50-16.
4) After warmup, shading is performed and the current set value of the
off center adjustment at each paper feed port is displayed on the
display section in 2 digits.
5) Enter the set value and press the start key.
The set value is stored and a copy is made.
<Adjustment specification>
Mode Specification
Original off
Single:
center mode
Center 3.0mm
(SPF mode)
(8) OC (SPF) open/close detection position adjustment
<AL-1622 only>
1) Set A4 or 8 1/2" x 11" paper on the OC table.
Check that the document size display on the operation panel indi-
cates the correct size of the set paper.
2) Close the OC (SPF) with a small clearance for insertion of your
hand left, and remove the paper from the OC table.
The document size display does not change from the display in 1).
3) Open the OC (SPF) slowly until the display on the operation panel
changes (all the document size display lamps are turned off), and
measure dimension A shown below under that state.
Distance A = Table glass top - OC (SPF) knob 117"
Open
Check the position where the display checked in
procedure 1) is changed.
7 – 9
SIM Set value Set range
Add 1:
0.1mm shift to R
side
SIM
1 ~ 99
50-16
Reduce
1: 0.1mm shift to
L side
A