Sharp MX-4100N Service Manual page 91

NOTE: To execute this adjustment, the following items must have
been properly adjusted.
ADJ 15 Scan image magnification ratio adjustment
(RSPF/DSPF mode)
ADJ 16B RSPF mode off-center adjustment
ADJ 16C DSPF mode off-center adjustment
ADJ 15A Scan image magnification ratio adjustment
(Main scanning direction) (RSPF mode)
ADJ 15C Scan image magnification ratio adjustment
(Main scanning direction) (DSPF mode)
ADJ 15B Scan image magnification ratio adjustment
(Sub scanning direction) (RSPF mode)
ADJ 15D Scan image magnification ratio adjustment
(Sub scanning direction) (DSPF mode)
ADJ 17 Print area (Void area) adjustment
(Print engine section)
ADJ 18B Document scan position adjustment (RSPF mode)
ADJ 18C Document scan position adjustment (DSPF mode)
b. Adjustment procedures
1) Prepare the adjustment chart.
The adjustment chart can be made by the following proce-
dures.
Use A4 (11" x 8.5") paper and draw arrow marks vertically and
horizontally on the front and the back surfaces.
At the same time, put marks of the lead edge, the trail edge,
the front end, and the rear end as well as the identification
marks of the front surface and the back surface.
R
L
F
Draw arrows.
R
L
F
Draw arrows.
2) Enter the SIM50-6 mode.
Front surface
FACE
T
Put the position
marks.
Back surface
BACK
T
Put the position
marks.
MX-5001N ADJUSTMENTS 5 – 49
SIM50-6
(DSPF)
Item Display
A SIDE1
B SIDE2
C Image LEAD_EDGE
loss (SIDE1)
amount
setting
SIDE1
D FRONT_REAR
(SIDE1)
E TRAIL_EDGE
(SIDE1)
F Image LEAD_EDGE
loss (SIDE2)
amount
setting
SIDE2
G FRONT_REAR
(SIDE2)
H TRAIL_EDGE
(SIDE2)
I OFSET_SPF1
J OFSET_SPF2
K SCAN_SPEED_SPF1
(RSPF)
Item Display
A SIDE1
B SIDE2
C Image LEAD_EDGE
loss (SIDE1)
amount
setting
SIDE1
D FRONT_REAR
(SIDE1)
E TRAIL_EDGE
(SIDE1)
Setting Default
Content
range value
Front surface 1 - 99 50
document scan
position
adjustment
(CCD)
Back surface 1 - 99 50
document scan
position
adjustment
(CCD)
Front surface 0 - 99 20
lead edge
image loss
amount setting
Front surface 0 - 99 20
side image loss
amount setting
Front surface 0 - 99 30
rear edge
image loss
amount setting
Back surface 0 - 99 30
lead edge
image loss
amount setting
Back surface 0 - 99 20
side image loss
amount setting
Back surface 0 - 99 20
rear edge
image loss
amount setting
RSPF front 1 - 99 50
surface
document off-
center
adjustment
RSPF back 1 - 99 50
surface
document off-
center
adjustment
RSPF 1 - 99 50
document front
surface
magnification
ratio adjustment
(Sub scan)
Setting Default
Content
range value
Front surface 1 - 99 50
document scan
position
adjustment
(CCD)
Back surface 1 - 99 50
document scan
position
adjustment
(CCD)
Front surface 0 - 99 20
lead edge
image loss
amount setting
Front surface 0 - 99 20
side image loss
amount setting
Front surface 0 - 99 30
rear edge
image loss
amount setting