Read Sharp MX-LC13 (serv.man27) Technical Bulletin online
MX-7500N MX-LC13 (LARGE CAPACITY TRAYS) 9 – 22
(1) Check and Adjust “Off-center” with the simulation
If the center is shifted greatly, “Color Shift” or Mechanical Vignett-
ing” may occur as the figure above.
In this case, it is necessary to do the following mechanical adjust-
ment.
Normally, Off-center adjustment is done by image processing using
CIS function. To check the mechanical off-center position, CIS
function needs to be turned off.
1) Run Sim50-10 using the keypad on the main unit.
2) Select SW1 and change the value “1” to “0”.
3) Press [EXECUTE] key to print out for each paper feed tray.
4) Check the void area of the adjustment pattern and check the
ing” may occur as the figure above.
In this case, it is necessary to do the following mechanical adjust-
ment.
Normally, Off-center adjustment is done by image processing using
CIS function. To check the mechanical off-center position, CIS
function needs to be turned off.
1) Run Sim50-10 using the keypad on the main unit.
2) Select SW1 and change the value “1” to “0”.
3) Press [EXECUTE] key to print out for each paper feed tray.
4) Check the void area of the adjustment pattern and check the
“Off-center” shift amount (A-B).
“A-B” is over 3mm: Move to Mechanical Adjustment 1
“A-B” is less than +/-3mm: Move to Mechanical Adjustment 2
“A-B” is less than +/-2mm: SW1 “0” to “1” for auto adjustment.
“A-B” is over 3mm: Move to Mechanical Adjustment 1
“A-B” is less than +/-3mm: Move to Mechanical Adjustment 2
“A-B” is less than +/-2mm: SW1 “0” to “1” for auto adjustment.
G. Off-center adjustment
(1) Mechanical Off-center Adjustment 1
If “Off-center” is over +/-3mm.
1) Open the left side door and the LCT delivery paper guide unit.
1) Open the left side door and the LCT delivery paper guide unit.
2)
Loosen the 2 blue screws.
3)
Adjust the LCT position to push or pull with holding the pillar of
LCT as the figure below.
In case the print image shifts to front: Push LCT to rear direc-
tion.
In case the print image shifts to rear: Pull LCT to front direc-
tion.
After finish the adjustment, fix the unit with the 2 blue screws.
LCT as the figure below.
In case the print image shifts to front: Push LCT to rear direc-
tion.
In case the print image shifts to rear: Pull LCT to front direc-
tion.
After finish the adjustment, fix the unit with the 2 blue screws.
If these adjustment above couldn’t adjust Off-center completely, the
following adjustment is needed.
When shifting the line of printing from the center of the paper in the
direction A of arrow as shown below:
1)
following adjustment is needed.
When shifting the line of printing from the center of the paper in the
direction A of arrow as shown below:
1)
Separate the LCT from MX-RB14.
When separating, tighten the screw to release the lock.
When connecting again, loosen the screw after connection.
When separating, tighten the screw to release the lock.
When connecting again, loosen the screw after connection.
2)
Open the left side door and open the LCT delivery paper guide
unit.
unit.
3)
Loosen the 2 blue screws.
A: Registration Shift
B: Mechanical Vignetting
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