Read Sharp MX-6240N / MX-7040N (serv.man24) Service Manual online
MX-7040N ADJUSTMENTS AND SETTINGS 5 – 87
5)
Enter the SIM 48-1 mode.
6)
Select an adjustment item with the scroll key.
7)
Enter an image magnification ratio adjustment value with 10-
key, and press [OK] key.
key, and press [OK] key.
When the adjustment value is increased, the image magnifica-
tion ratio is increased.
tion ratio is increased.
When the adjustment value is changed by 1, the image magni-
fication ratio is changed by 0.1%.
fication ratio is changed by 0.1%.
8)
Make a normal copy and obtain the copy magnification ratio.
Repeat the procedures of 1) - 8) until a satisfactory result is
obtained.
obtained.
ADJ 17
Scan image off-center
adjustment
(Manual adjustment)
adjustment
(Manual adjustment)
NOTE:
Normally if the adjustment is executed by ADJ3 (automatic adjust-
ment), there is no need to execute this adjustment.
ment), there is no need to execute this adjustment.
Only when the manual adjustment is required, execute this adjust-
ment.
ment.
In other words, this manual adjustment is executed when a satis-
factory result is not obtained from the automatic adjustment
(ADJ3).
factory result is not obtained from the automatic adjustment
(ADJ3).
17-A
Scan image off-center adjustment (Manual
adjustment) (Document table mode)
adjustment) (Document table mode)
This adjustment must be performed in the following cases:
* When the scanner (reading) section is disassembled.
* When the scanner (reading) unit is replaced.
* When a U2 trouble occurs.
* When the scanner control PWB is replaced.
* When the EEPROM on the scanner control PWB is replaced.
1)
Make a copy of the adjustment chart (made by yourself) in the
adjustment mode (document table).
adjustment mode (document table).
2)
Check the copy image center position.
If A - B =
1.0mm, the adjustment is not required.
If the above condition is not satisfied, perform the following
procedures.
procedures.
3)
Enter the SIM 50-12 mode.
4)
Select the adjustment mode OC with the scroll key.
5)
Enter the adjustment value with 10-key, and press [OK] key.
The entered value is set.
When the set value is increased, the main scanning print posi-
tion is shifted to the front side by 0.1mm.
tion is shifted to the front side by 0.1mm.
6)
Go to the copy mode, and make a copy.
Repeat the procedures of 1) - 6) until the above condition is satis-
fied.
fied.
17-B
Scan image off-center adjustment
(Manual adjustment) (DSPF mode)
(Manual adjustment) (DSPF mode)
This adjustment must be performed in the following cases:
* When the scan control PWB is replaced.
* When the EEPROM on the scan control PWB is replaced.
* When the scanner (reading) section is disassembled.
* When the scanner (reading) section is replaced.
* When U2 trouble occurs.
* When the DSPF section is disassembled.
* When the DSPF unit is replaced.
CAUTION: To execute this adjustment, it is required that the
ADJ17A Scan image off-center adjustment (Document
table mode) must have been properly adjusted.
table mode) must have been properly adjusted.
SPF (SUB)
Sub scanning direction image magnification ratio
(Front surface)
(Front surface)
SPFB (SUB)
Sub scanning direction image magnification ratio
(Back surface)
(Back surface)
B
A = B
A
B'
A' - B' =
1.0mm
A'
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