Adjust The Image Loss In Scanner Mode; Leading Edge Image Loss Adjustment; Trailing Edge Image Loss Adjustment - Sharp MX-M550U Service Manual

SIMULATION 50-6
LEAD EDGE ADJUSTMENT(SPF).
(MAGNIFICATION)
INPUT 25-200(%)
Item
0 TRAY Paper feed tray selection
SELECT
1 COPY Copy START (Default)
START
2 MAGNIFI Print magnification ratio
CATION
(Lead edge adjustment value)
3 SIDE1 Front surface document
scan start position
adjustment value
4 SIDE2 Back surface document
scan start position
adjustment value
(Image loss set value: SIDE 1)
5 LEAD Front surface lead edge
_EDGE image loss set value
6 FRONT Front surface side edge
_REAR image loss set value
7 TRAIL Front surface rear edge
_EDGE image loss set value
(Image loss set value: SIDE 2)
8 LEAD Back surface lead edge
_EDGE image loss set value
9 FRONT Back surface side edge
/REAR image loss set value
10 TRAIL Back surface rear edge
_EDGE image loss set value

(Leading edge image loss adjustment)

1) Set the adjustment values for leading edge image loss for the
front and back sides as follows:
(Standard setting)
5 LEAD_EDGE: 15
8 LEAD_EDGE: 15
* Set the adjustment value for "5 LEAD_EDGE" and "8
LEAD_EDGE" to 15 by entering "15" into the (LEAD EDGE)
adjustment value field and then pressing the P key.
2) In DSPF mode, make a duplex copy at 100% magnification,
and make sure that the leading edge image loss is 1.5 mm for
both the front and back sides. (Select duplex mode from the
paper selection mode as described in Simulation 50-6). (Enter
"100" into the (MAGNIFICATION) field, and then press the
start key).
Papar lead edge
TIL = 1.5 mm
TV = 3.5 mm
Image area
Image loss (TIL)
Void (TV)
No Image
If an acceptable result is not obtained, do the following steps.
100
Setting
Default
range
1 – 6 —
— —
25 – —
200%
0 – 99 50
0 – 99 15
20
0 – 20 0
0 – 99 15
20
0 – 20 0
MX-M700N ADJUSTMENTS 6 – 28
3) Repeat the process of changing the (SIDE1 & SIDE2) adjust-
ment values and then pressing the Start key until attaining an
acceptable level.
SIDE1: Adjustment value for the position at which to read the
leading edge of the original in DSPF front side mode.
SIDE2: Adjustment value for the position at which to read the
leading edge of the original in DSPF back side mode.
(The change according to the one step of the adjustment value
is 0.1mm.)
(The timing in which to start reading the image should be
determined based on the timing in which detector SPPD4
detects the leading edge of the original.)
Repeat steps 2 to 3 until an acceptable result is obtained.

(Trailing edge image loss adjustment)

1) Select duplex mode from paper selection mode as described
in Simulation 50-6, enter "100" into the (MAGNIFICATION)
field, and then press the Start key to make a duplex copy at
100% magnification in DSPF mode, and make sure that the
trailing edge image loss is 1.5 mm for both front and back
sides.
Image area
If an acceptable result is not obtained, do the following steps.
2) Repeat the process of changing the (TRAIL EDGE) adjust-
ment value and then pressing the Start key until attaining an
acceptable level.
Repeat the above adjustments until an acceptable result is
obtained.
(Front/rear frame direction image loss adjustment)
Set the (FRONT/REAR) adjustment value to 20 by entering "20"
into the (FRONT/REAR) adjustment value field and then pressing.
Note that changing this adjustment value shifts the image position
in the front/rear frame direction.
8-D

Adjust the image loss in scanner mode

1) Go through the modes specified in Simulation 50-27.
SIMULATION 50-27
ORIGINAL IMAGE LOSS SETTING(FAX/SCN). SELECT 1-18, AND
PRESS START.
[FAX]
1.OC(LEAD_EDGE) 0 2.OC(FRONT/REAR)
4.SPF(LEAD_EDGE) 0 5.SPF(FRONT/REAR)
7.CIS(LEAD_EDGE) 0 8.CIS(FRONT/REAR)
[SCN]
10.OC(LEAD_EDGE) 0 11.OC(FRONT/REAR)
13.SPF(LEAD_EDGE) 0 14.SPF(FRONT/REAR)
16.CIS(LEAD_EDGE) 0 17.CIS(FRONT/REAR)
Press [START] key.
Papar trail edge
TIL = 1.5 mm
TV = 3.5 mm
Image loss (TIL)
Void (TV)
No Image
1
0 3.OC(TRAIL_EDGE)
0 6.SPF(TRAIL_EDGE)
0 9.CIS(TRAIL_EDGE)
0 12.OC(TRAIL_EDGE)
0 15.SPF(TRAIL_EDGE)
0 18.CIS(TRAIL_EDGE)
Press [SYSTEM SETTINGS] key.
0
0
0
0
0
0