Read Sharp AR-M550 (serv.man14) Service Manual online
AR-M550/M620 SETTING AND ADJUSTMENTS 7 - 29
(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)
Leading edge image loss: 1.5 mm (LEAD:15)
Paper leading edge void: 3.5mm (DENA:35)
• Set the adjustment value for (LEAD) to 15 by entering "15" into
the (LEAD EDGE) adjustment value field and then pressing the
P key.
P key.
• Set the adjustment value for (DENA) to 35 by entering “35” into
the (DENA) adjustment value field and then pressing the P key.
2) In SPF 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).
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).
If an acceptable result is not obtained, do the following steps.
3) Repeat the process of changing the (SIDE1 & SIDE2) adjustment
values and then pressing the Start key until attaining an acceptable
level.
level.
SIDE1: Adjustment value for the position at which to read the lead-
ing edge of the original in SPF front side mode.
ing edge of the original in SPF front side mode.
SIDE2: Adjustment value for the position at which to read the lead-
ing edge of the original in SPF back side mode.
ing edge of the original in SPF back side mode.
(The adjustment value should be changed in steps of 0.1 mm.)
(The timing in which to start reading the image should be deter-
mined based on the timing in which detector SPPD4 detects the
leading edge of the original.)
mined 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% magnifica-
tion in SPF mode, and make sure that the trailing edge image loss
is 1.5 mm for both front and back sides.
then press the Start key to make a duplex copy at 100% magnifica-
tion in SPF mode, and make sure that the trailing edge image loss
is 1.5 mm for both front and back sides.
If an acceptable result is not obtained, do the following steps.
2) Repeat the process of changing the (TRAIL EDGE) adjustment
value and then pressing the Start key until attaining an acceptable
level.
level.
Repeat the above adjustments until an acceptable result is obtained.
(Front/rear frame direction image loss adjustment)
1) Set the (FRONT/REAR) adjustment value to 20 by entering "20"
into the (FRONT/REAR) adjustment value field and then pressing
the P key.
the P key.
Note that changing this adjustment value shifts the image position in
the front/rear frame direction.
the front/rear frame direction.
1) Go through the modes specified in Simulation 50-27.
2) Using the numeric keypad, enter the number that corresponds to
the scanner mode adjustment item.
3) Press the Start key
4) Enter the adjustment value using the numeric keypad.
5) Press the Start key
(The adjustment value should be changed in steps of 1.0mm.)
Scanned images must be visually checked for image loss.
Note: Make adjustments in the same manner as in ADJ 8A and ADJ
8C.
Papar lead edge
TIL = 1.5 mm
TV = 3.5 mm
TV = 3.5 mm
Image area
Void (TV)
Image loss (TIL)
No Image
Papar trail edge
TIL = 1.5 mm
TV = 3.5 mm
TV = 3.5 mm
Image area
Void (TV)
Image loss (TIL)
No Image
ADJ 8D
Adjust the image loss in scanner mode
Press [START] key.
Press [CUSTOM SETTINGS] key.
Item
Set range
Default
FAX send
1
OC (LEAD_EDGE)
OC lead edge
0 - 10
(Unit 1mm)
3
(3mm)
2
OC (FRONT/REAR)
OC side
3
OC (TRAIL_EDGE)
OC rear edge
4
SPF (LEAD_EDGE)
SPF lead edge
5
SPF (FRONT/REAR) SPF side
6
SPF (TRAIL_EDGE)
SPF rear edge
7
CIS (LEAD_EDGE)
CIS lead edge
8
CIS (FRONT/REAR)
CIS side
9
CIS (TRAIL_EDGE)
CIS rear edge
Scanner mode
10
OC (LEAD_EDGE)
OC lead edge
0 - 10
(Unit 1mm)
0
(0mm)
11
OC (FRONT/REAR)
OC side
12
OC (TRAIL_EDGE)
OC rear edge
13
SPF (LEAD_EDGE)
SPF lead edge
14
SPF (FRONT/REAR) SPF side
15
SPF (TRAIL_EDGE)
SPF rear edge
16
CIS (LEAD_EDGE)
CIS lead edge
17
CIS (FRONT/REAR)
CIS side
18
CIS (TRAIL_EDGE)
CIS rear edge
1
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)
0
3.OC(TRAIL_EDGE)
0
4.SPF(LEAD_EDGE)
0
5.SPF(FRONT/REAR)
0
6.SPF(TRAIL_EDGE)
0
7.CIS(LEAD_EDGE)
0
8.CIS(FRONT/REAR)
0
9.CIS(TRAIL_EDGE)
0
[SCN]
10.OC(LEAD_EDGE)
0
11.OC(FRONT/REAR)
0
12.OC(TRAIL_EDGE)
0
13.SPF(LEAD_EDGE)
0
14.SPF(FRONT/REAR)
0
15.SPF(TRAIL_EDGE)
0
16.CIS(LEAD_EDGE)
0
17.CIS(FRONT/REAR)
0
18.CIS(TRAIL_EDGE)
0
0
SIMULATION 50-27
ORIGINAL IMAGE LOSS SETTING(FAX/SCN). INPUT 0-10, AND
PRESS START.
1.OC(LEAD_EDGE)
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