MX-6240N, MX-7040N (serv.man24). Section 5 Adjustments and Settings - Updated November 2012 - Sharp Copying Equipment Service Manual (repair manual). Page 80

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MX-7040N  ADJUSTMENTS AND SETTINGS  5 – 80
The standard fixing position is at two scales in direction B from
the marking scale center. However, the position may be varied
depending on the situation.
* When a wrinkle is made on paper, change the position in the
error direction A.
* When an image deflection or unclear image is generated in
the lead edge area of paper, change the position in the
arrow direction B.
 
 
ADJ 15
Print image manual 
magnification ratio, area, 
position adjustment 
(Manual adjustment)
NOTE:
Normally if the adjustment is executed by ADJ3 (automatic adjust-
ment), there is no need to execute this adjustment.
Only when the manual adjustment is required, execute this adjust-
ment.
In other words, this manual adjustment is executed when a satis-
factory result is not obtained from the automatic adjustment
(ADJ3).
 
 
15-A
Print image manual magnification ratio 
adjustment (Main scanning direction) 
(Print engine)
This adjustment must be performed in the following cases:
* When the LSU (writing) unit is replaced.
* U2 trouble has occurred.
* The PCU PWB has been replaced.
* The EEPROM of the PCU PWB has been replaced.
1)
Enter the SIM 50-10 mode.
2)
Set A4 (11" x 8.5") paper in the paper feed tray.
3)
Select the paper feed tray set in procedure 2) with the scroll
key and the numeral key.
4)
Press [EXECUTE] key.
The check pattern is printed out.
5)
Check that the inside dimension of the printed halftone is 240 
0.5mm.
If the above requirement is not met, do the following steps.
6)
Change the set value of set item A.
When the set value is changed by 1, the dimension is changed
by 0.1mm.
When the set value is increased, the BK image magnification
ratio in the main scanning direction is increased. When the set
value is decreased, the BK image magnification ratio in the
main scanning direction is decreased.
Repeat procedures 2) - 6) until a satisfactory result is obtained.
 
15-B
Print image manual area adjustment (Main 
scanning direction, sub scanning direction) 
(Print engine)
This adjustment must be performed in the following cases:
* When the LSU is replaced or removed.
* When a paper tray is replaced.
* When the paper tray section is disassembled.
* When the manual feed tray is replaced.
* When the manual feed tray is disassembled.
* When the duplex mode paper transport section is disassembled.
* When the registration roller section is disassembled.
* U2 trouble has occurred.
* The PCU PWB has been replaced.
* The EEPROM of the PCU PWB has been replaced.
NOTE: Before execution of this adjustment, be sure to execute the
print image manual magnification ratio adjustment
(ADJ15A) (main scanning direction) (print engine).
EXECUTE
End of print
EXECUTE
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