Read Sharp AR-C262M (serv.man3) Service Manual online
AR-C262M SETTING AND ADJUSTMENTS 8 - 20
11) Make a copy, and check the copy magnification ratio.
If the copy magnification ratio is outside the range of 100% ± 1%,
repeat procedures 9) to 11) until it is in the range.
repeat procedures 9) to 11) until it is in the range.
unit fixing position is changed with SIM 48-1 set to 50, the
copy magnification ratio is adjusted to the specified level
(100 ± 1.0%) and the specified resolution is provided.
copy magnification ratio is adjusted to the specified level
(100 ± 1.0%) and the specified resolution is provided.
This adjustment must be performed in the following cases:
• When the copy magnification ratio in the copy image sub scan-
ning direction is improper.
• When the scanner motor is replaced.
• When a U2 trouble occurs.
• When the MFP main PWB is replaced.
• When the EEPROM of the MFP main PWB is replaced.
Before this adjustment, perform the focus adjustment (CCD unit
installing position adjustment).
installing position adjustment).
1) Place a scale on the original table as shown below.
2) Enter the SIM 48-1 mode.
3) Make a normal copy and obtain the copy magnification ratios.
Copy magnification ratio
=
x 100 [%]
4) Check that the copy magnification ratio is within the specified
range (100 ± 1.0%).
If the copy magnification ratio is within the specified range
(100 ± 1.0%), the adjustment is completed.
(100 ± 1.0%), the adjustment is completed.
If not, perform the following procedure.
5) Change the scan mode adjustment value of SIM 48-1.
When the adjustment value is increased, the sub scanning
direction copy magnification ratio is increased.
direction copy magnification ratio is increased.
A change in the adjustment value by 1 corresponds to a
change in the copy magnification ratio by about 0.1%.
change in the copy magnification ratio by about 0.1%.
Repeat procedures 3) to 5) until the coy magnification ratio is
within the specified range (100 ± 0.28%).
within the specified range (100 ± 0.28%).
Note: Fix the adjustment value of SIM 48-1 adjustment mode (F –
R) to 50.
This adjustment must be performed in the following cases:
When the scanner (reading) section is disassembled.
When the scanner (reading) unit is replaced.
When the RADF section is disassembled.
When the RADF unit is installed.
When the RADF unit is replaced.
When a U2 trouble occurs.
When the MFP main PWB is replaced.
When the EEPROM of the MFP main PWB is replaced.
1) Make a copy in the adjustment chart adjustment mode. (Docu-
ment table or RADF)
2) Check the copy image center position.
If A – B = ± 4.0mm, there is no need to adjust.
If the above condition is not satisfied, perform the following
procedures.
procedures.
3) Enter the SIM 50-12 mode.
4) Select the adjustment mode with the scroll key.
5) Enter the adjustment value with the 10-key and press the [OK]
key.
The entered value is set.
∗
When the set value is increased, the image is shifted to the rear
side. When the set value is decreased, the image is shifted to
the front side.
side. When the set value is decreased, the image is shifted to
the front side.
When the set value is change by 1, the image is shifted by about
0.4mm.
0.4mm.
Repeat procedures 2) to 5) until the above condition is satisfied.
ADJ 8
Sub scanning direction copy
magnification ratio adjustment
magnification ratio adjustment
10 20 30 40 50 60 70 80 90 50 100 110 120130 140
(Original dimension – Copy dimension)
Original dimension
10
20
90
100
110
10
20
90
100
110
10
20
90
100
110
(Example 2)
Copy B
(Longer than
the original)
Copy B
(Longer than
the original)
(Example 1)
Copy A
(Shorter than
the original)
Copy A
(Shorter than
the original)
Scale
(Original)
(Original)
ADJ 9
Main scanning direction copy
image position adjustment
(Scanner (reading) section)
image position adjustment
(Scanner (reading) section)
A
B
A – B = 4.0mm
(400%)
