B. Image Position Adjustment - Sharp AL-2030 Service Manual

c. Adjustment procedure
1) Set the scale on the document table as shown below. (Use a
long scale for precise adjustment.)
2) Set the copy magnification ratio to 100%.
3) Make a copy on A4 or 81/2" x 11" paper.
4) Measure the length of the copied scale image.
5) Calculate the sub scanning direction copy magnification ratio
using the formula below.
Copy image dimensions
=
Original dimension
JAPAN
mm
10 20 100 110 120
1/2mm
JAPAN
mm
10 20 100 110 120
1/2mm
Reference Comparison point
6) Check that the actual copy magnification ratio is within the
specified range. (100 ± 1.0%).
If it is not within the specified range, perform the following pro-
cedures.
7) Execute SIM 48-1 to select the sub scanning direction copy
magnification ratio adjustment mode.
To select the adjustment mode, use the copy mode select key.
(PHOTO lamp ON)
8) Enter the new set value of sub scanning direction copy magni-
fication ratio with the copy quantity set key, and press the
START button.
Repeat procedures 1) - 8) until the sub scanning direction actual
copy magnification ratio in 100% copying is within the specified
range.
When the set value is changed by 1, the magnification ration is
changed by 0.1%.
X 100 (%)
110
Original (Scale)
HARDDENCD
STAINLESS
150
130 140
Shizuoka
Paper feed
HARDDENCD
direction
STAINLESS
150
130 140
Shizuoka
Copy
AL-2040CS ADJUSTMENTS 9 - 2

B. Image position adjustment

There are following five kinds of image position adjustments,
which are made by laser control except for the image scan start
position adjustment. For the adjustments, SIM 50-01, 50-06, 50-
10, 50-18 and SIM 50-19 are used.
No. Adjustment item
1 Print start position (Main cassette)
2 Print start position (2nd cassette)
3 Print start position (Manual feed)
4 Image lead edge void amount
5 Image scan start position
6 Image rear edge void amount
7 SPF image scan start position
8 SPF rear edge void amount
9 Center offset
10 Memory reverse position adjustment in
duplex copy
11 Duplex copy rear edge void adjustment
12 Duplex back print start position
To select the adjustment mode with SIM 50-01, use the copy mode
select key.
The relationship between the adjustment modes and the lighting
lamps are as shown in the table below.
Adjustment mode
Print start position (Main cassette
paper feed)
Print start position (2nd cassette
paper feed)
Print start position (Manual paper
feed)
Image lead edge void quantity
Image scan start position
Image rear edge void quantity
: Supported for the installing model and skipped for non-install-
ing mode.
To select the adjustment mode with SIM 50-10, use the copy mode
select key.
The relationship between the adjustment modes and the lighting
lamps are as shown in the table below.
Machine with the multi manual paper feed unit
Adjustment mode
Print center offset (Main cassette
paper feed)
Print center offset (2nd cassette)
Print center offset (Manual paper
feed)
Second side center offset
: Supported for the installing model and skipped for non-install-
ing mode.
Simulation
50 - 01
50 - 01
50 - 01
50 - 01
50 - 01
50 - 01
50 - 06
50 - 06
50 - 10
50 - 18
50 - 19
50 - 19
Lamp ON
AE, main cassette lamp
AE, 2nd cassette lamp
AE, manual feed lamp
TEXT lamp
PHOTO lamp
AE, TEXT, PHOTO lamp
Lamp ON
AE, main cassette lamp
AE, 2nd cassette lamp
AE, manual paper feed
lamp
TEXT lamp