AR-M550 (serv.man15). (8) Simulation - Sharp Copying Equipment Service Manual (repair manual). Page 71

AR-M550/M620  SIMULATION  8 - 71

(Lead edge image loss adjustment)

1) Set the front and back surface image loss adjustment values

(LEAD EDGE) as specified below:

(Standard set value) Lead edge image loss: 1.5mm (LEAD: 1.5)
Paper lead edge void: 3.5mm (DENA: 35)

∗

Set the adjustment value of LEAD to 15. (Enter 15 as the adjust-
ment value of LEAD EDGE, and press [P] key.)

2) Set the adjustment value of L4 to 0. (Enter 0 as the adjustment

value of L4, and press [P] key.

3) Set the adjustment value of L5 to 0. (Enter 0 as the adjustment

value of L5, and press [P] key.

4) Make a copy at 200% with the SPF, and calculate the values of L4

and L5. (Enter 200 as the set value of the copy magnification ratio
set value (MAGNIFICATION) and press [START] key.)

5) Enter the above values as the set values of L4 and L5. (Enter the

adjustment values of L4 and L5, and press [P] key.)

(The image scan start timing is determined with the detection tim-
ing of the document lead edge by the detector SPPD4.)

If the adjustment result is not satisfactory, perform the above proce-
dures again or adjust with SIM 50-1. 

NOTE: If the adjustment result of the above procedures is not satisfac-

tory, though the adjustment value is changed individually, the
adjustment cannot be completed normally.

Repeat procedures 2) - 6) until a satisfactory result is obtained. 

(Rear edge image loss adjustment)

Adjust so that the rear edge image loss is 3.5mm. (Change the adjust-
ment value of TRAIL EDGE, and press [START] key.) 

(Front/rear frame direction image loss adjustment)

Set the adjustment value of SIDE to 20. (Enter 20 as the adjustment
value of SIDE, and press [P] key.)

When the adjustment value is changed, the image position is shifted in
the front/rear frame direction.

NOTE: When [P] key is pressed after entering the adjustment value,

the adjustment value is set. When [START] key is pressed
instead, the adjustment value is set and copying is performed.
(Table 2)

(Copy condition setting in this simulation)

∗

To select paper (paper feed tray), perform the following procedures.

1) Enter 0 with 10-key. 

2) Press [START] key. (The mode is changed to the paper feed tray

selection mode.)

3) Enter the number corresponding to the paper feed tray to be used

with 10-key. (Table 3)

4) Press [START] key. (The paper feed tray is selected.)

∗

To set the copy magnification ratio, perform the following procedure.

1) Enter 2 with 10-key.

2) Press [START] key. 

3) Enter the copy magnification ratio with 10-key.

4) Press [START] key.

(Table 1)

Select 2, and 
press [START] key.

Press [START] key, or 
press [CUSTOM SETTINGS] key.

50-7

Adjustment

Used to adjust the copy image position and void area 
(image loss) on print paper in the copy mode. (The 
similar adjustment can be performed with SIM 50-6.) 
(SPF mode)

Picture quality

L4 = Distance (mm) from the image lead edge position to the

scale of 10mm x 10

50

1

2

SIMULATION 50-6

LEAD EDGE ADJUSTMENT(SPF). SELECT 0-10, AND PRESS

START.

0.TRAY SELECT 

1

   1.COPY START

2.MAGNIFICATION 

100

(ADJUSTMENT DATA)3.SIDE1 

50

 4.SIDE2 

50

(IMAGE LOSS SETTING)

SIDE1: 5.LEAD_EDGE 

15

 6.FRONT/REAR 

20

  7.TRAIL_EDGE 

0

SIDE2: 8.LEAD_EDGE 

15

 9.FRONT/REAR 

20

 10.TRAIL_EDGE 

0

Press [CUSTOM SETTING] key.

Press [START] key.

Press [CUSTOM SETTINGS] key, 
or terminate copying.

Press [START] key or 
press [CUSTOM SETTINGS] key.

SIMULATION 50-6

LEAD EDGE ADJUSTMENT(SPF). INPUT VALUE 0-99, AND PRESS

START.

3.SIDE1

SIMULATION 50-6

LEAD EDGE ADJUSTMENT(SPF). NOW COPYING.

SIMULATION 50-6

LEAD EDGE ADJUSTMENT(SPF). SELECT 1-16, AND PRESS

START.

(FEED TRAY)

   1.TRAY1 2.TRAY2 3.TRAY3 4.TRAY4

   5.BPT   6.LCC

  (ABOVE+10: DUPLEX MODE)

Select 1, 
and press 
[START] key.

Select 0, and press [START] key.

Select other than 0 - 2, and press [START] key. 

100

SIMULATION 50-6

LEAD EDGE ADJUSTMENT(SPF).

(MAGNIFICATION)

  INPUT 25-200(%)

L5 = Distance (mm) from the image lead edge position to the

paper lead edge x 10

Set range

25 - 200 (%)

Item

Set 

range

Default

0

TRAY SELECT

Paper feed tray selection 
(1 - 6)

–

–

1

COPY START

Copy START (Default)

–

–

2

MAGNIFICATION Print magnification ratio 

(25 - 200%)

–

–

(Lead edge adjustment value)

3

L4

Distance from the front 
surface image lead edge 
to the scale of 10mm 
(SPF: 200%)

0 - 999

–

4

L5

Distance from the back 
surface image lead edge 
to the scale of 10mm 
(SPF: 200%)

–

(Image loss set value: SIDE 1)

5

LEAD_EDGE

Front surface lead edge 
image loss set value

0 - 99

15

6

FRONT_REAR

Front surface side edge 
image loss set value

20

7

TRAIL_EDGE

Front surface rear edge 
image loss set value

0 - 20

0