Read Sharp MX-LC13 (serv.man15) Technical Bulletin online
MX-7500N MX-LC13 (LARGE CAPACITY TRAYS) 9 – 5
F. Off-center Check
CAUTION: If the off-center adjustment is not completely, there's a
possibility to have the following problem when large size
paper (example: 13 * 19 inch size) was fed from LCT.
A: Registration Shift
B: Mechanical Vignetting
paper (example: 13 * 19 inch size) was fed from LCT.
A: Registration Shift
B: Mechanical Vignetting
(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 adjustment1
When shifted over +/-3mm.
1)
1)
If the image shifts to the front side, lift up the front side adjuster
in order to correct the paper transport position as a figure
below.
in order to correct the paper transport position as a figure
below.
2)
If the image shifts to the rear side, lift up the rear side adjuster
in order to correct the paper transport position as a figure
below.
in order to correct the paper transport position as a figure
below.
(2) Mechanical Adjustment2
When shifted over +/-2mm less than +/-3mm.
1)
1)
Pull out the cassette.
Press the lock button on the front cabinet and lower the paper
feed base tray to the paper supply position. Pull out the tray.
* In case the machine is turned off, If it is necessary to release
the lock manually, push the shaft at the bottom of the front cab-
inet and lower the paper feed base tray to the paper supply
position and pull out the tray.
Press the lock button on the front cabinet and lower the paper
feed base tray to the paper supply position. Pull out the tray.
* In case the machine is turned off, If it is necessary to release
the lock manually, push the shaft at the bottom of the front cab-
inet and lower the paper feed base tray to the paper supply
position and pull out the tray.
When shifting the line of printing from the center of the paper in
the direction A of arrow as shown below:
the direction A of arrow as shown below:
A: Registration Shift
B: Mechanical Vignetting
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