Sharp MX-2314N, Service Manual

Page: 131 / 524

MX-3114N ADJUSTMENTS AND SETTINGS 5 – 82
* Item A, B: When the adjustment value is increased, the scan
timing is delayed.
* Item C - H: When the adjustment value is increased, the
image loss is increased.
* Item A - H: 1 step = 0.1mm change
* The RSPF rear edge image loss setting is provided for coun-
termeasures against the case when shades are produced.
(Lead edge image loss adjustment)
1) Set the lead edge image loss adjustment values (LEAD EDGE
(SIDE1/SIDE2) on the front surface and the back surface to
the following values.
(Standard set value)
TRAIL EDGE (SIDE 1):
40 Lead edge image loss set value (Front surface)
TRAIL EDGE (SIDE 2):
40 Lead edge image loss set value (Back surface)
(When the set value is increased, the lead edge image loss is
increased.)
(Change for change in the set value: 0.1mm/step)
2) Make a duplex copy in 100% in the RSPF mode. Check to
confirm that the lead edge image loss is within 4.0

1.0mm on
the front surface and the back surface. The paper lead edge
must be aligned with the presumed image lead edge.
If the above condition is not satisfied, perform the following
procedure.
3) Enter the adjustment value of SIDE1/SIDE2 with 10-key, and
press [OK] key.
Adjust so that the paper lead edge is aligned with the pre-
sumed image lead edge.
SIDE1: Front surface lead edge scan position adjustment
SIDE2: Back surface lead edge scan position adjustment
(When the adjustment value is increased, the print image posi-
tion is shifted to the delaying direction for the paper.)
(Change for change in the set value: 0.1mm/step)
Perform the procedures of 2) - 3) until a satisfactory result is
obtained.
(Rear edge image loss adjustment)
1) Make a duplex copy in 100% in the RSPF mode. Check to
confirm that the rear edge image loss is 2.0 - 5.0mm on the
front surface and the back surface.
If the above condition is not satisfied, perform the following
procedure.
Item/Display Content
Setting
range
Default
value
A SIDE1 Front surface
document scan
position
adjustment (CCD) 1 - 99 50
B SIDE2 Back surface
document scan
position
adjustment (CCD) 1 - 99 50
C Image
loss
amount
setting
SIDE1 LEAD_EDGE
(SIDE1) Front surface lead
edge image loss
amount setting 0 - 99 20
D FRONT_REAR
(SIDE1) Front surface side
image loss amount
setting 0 - 99 20
E TRAIL_EDGE
(SIDE1) Front surface rear
edge image loss
amount setting 0 - 99 40
F Image
loss
amount
setting
SIDE2 LEAD_EDGE
(SIDE2) Back surface lead
edge image loss
amount setting 0 - 99 20
G FRONT_REAR
(SIDE2) Back surface side
image loss amount
setting 0 - 99 20
H TRAIL_EDGE
(SIDE2) Back surface rear
edge image loss
amount setting 0 - 99 40
I OFFSET_SPF1 RSPF front surface
document off-
center adjustment 1 - 99 50
J OFFSET_SPF2 RSPF back
surface document
off-center
adjustment 1 - 99 50
K SCAN_SPEED_SPF1 RSPF document
front surface
magnification ratio
adjustment (Sub
scan) 1 - 99 50
L SCAN_SPEED_SPF2 RSPF document
back surface
magnification ratio
adjustment (Sub
scan) 1 - 99 50
Paper lead edge
Copy image
Image loss
4.0 1.0mm
The paper lead edge must be aligned with
the image lead edge.
Paper rear edge
Copy image
Image loss 2.0 - 5.0mm