Sharp AR-121E, Руководство по обслуживанию

Страница: 87 / 138

2) Set the copy magnification ratio to 100%.
3) Make a copy on A4 or 8
1
⁄
2
″ ×
11
″
paper.
4) Measure the length of the copied scale image.
5) Calculate the main scanning direction magnification ratio.
Main scanning direction magnification ratio
=
Copy image dimensions
Original dimension
×
100 (%)
100 110 120 130
150
140
mm
1/2mm
JAPAN
HARDDENCD
STAINLESS
Shizuoka
100 110 120 130
150
140
mm
1/2mm
JAPAN
HARDDENCD
STAINLESS
Shizuoka
110
10 20
10 20
(When a 100mm scale is used as the original.)
Paper feed
direction
Reference Comparison point
Original (Scale)
Copy
6) Check that the copy magnification ratio is within the
specified range. If it is not within the specified range, per-
form the following procedures.
7) Execute SIM 48-1 to select the main scanning direction
copy magnification ratio adjustment mode.
To select the adjustment mode, use the copy mode
select key.
In the case of the automatic adjustment, when the PRINT
switch is pressed, the mirror base unit moves to the white
plate for shading to scan the width of the reference line, cal-
culating the correction value and displaying and storing this
value.
After execution of the automatic adjustment, go out from the
simulation mode and make a copy to check the magnifica-
tion ratio.
If the magnification ratio is not in the specified range (100
±
1.0%), manually adjust as follows.
Adjustment mode Lighting lamp
Main scanning direction auto
copy magnification ratio
adjustment
Auto exposure lamp
ON
Main scanning direction
manual copy magnification
ratio adjustment
Manual exposure
lamp ON
Sub scanning direction copy
magnification ratio adjustment Photo exposure
lamp ON
8) Set the adjustment mode to Manual with the copy mode
select key.
9) Enter the new set value of main scanning direction copy
magnification ratio with the copy quantity set key, and
press the COPY button.
10) Change the set value and repeat the adjustment until
the ratio is within the speoified range.
When the set value is changed by 1, the magnification
ration is changed by 0.1%.
c. Sub scanning direction copy magnification ratio
I. Note
Before performing this adjustment, the following adjustments
must have been completed. If not, this adjustment cannot be
performed properly.
●
Image distortion adjustment
●
Must be installed to the lens unit reference position.
II. Cases when the adjustment is required
1) When the lens and the mirror unit are disassembled or
the part is replaced.
2) When the scanner unit drive section is disassembled or
the part is replaced.
3) When the main PWB is replaced.
4) When the EEPROM in the main PWB is replaced.
5) When “U2” trouble occurs.
6) When the copy image distortion adjustment is performed.
III. Necessary tools
●
Screwdriver (+)
●
Scale
IV. 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 8 1
⁄
2
″ ×
11
″
paper.
AL-1000/1010
9-5