Sharp MX 3501N - Color Laser - Copier, Service Manual

Page: 209 / 448

MX3500N SIMULATION 7 – 101
50-7
Purpose Adjustment
Function (Purpose) Used to adjust the copy image position on
print paper in the copy mode and to adjust
the void area (image loss). (The similar
adjustment can be executed with SIM50-6
(Simple type).) (RSPF/DSPF mode)
Section RSPF/DSPF
Item Image quality
Operation/Procedure
1) In advance, execute the RSPF/DSPF sub scanning direction
magnification ratio (SIM48-01).
2) Select the set item with [
↑
] and [
↓
] buttons.
The highlighted section is and the value is displayed in the set-
ting area.
* If there is any item over [
↑
], an active display is made and
item is shifted.
If there is no item over [
↑
], the display grays out and the
operation is invalid.
If there is any item under [
↓
], an active display is made and
item is shifted.
If there is no item over [
↓
], the display grays out and the
operation is invalid.
3) Set L4 and L5 to 0.
When the values of L4 and L5 are changed to 0, the following
adjustment values are automatically set.
Adjustment values of SIDE1, 2: 50
After completion of calculation, the value of L4/L5 returns to 0.
4) Set the magnification ratio to 200%, and press [COLOR] or
[BLAC] key to make a copy.
5) Measure the copied image, and enter the measure value of
distance A (RSPF/DSPF) to L4 and L5 in the unit of 0.1mm.
L4 : Distance A (RSPF/DSPF front surface: 200%) (Unit:
0.1mm)
L5 : Distance A (RSPF/DSPF back surface: 200%) (Unit:
0.1mm)
<RSPF>/<DSPF front surface>
<DSPF back surface>
6) When [EXECUTE] button is pressed, the currently entered
data are saved in EEPROM and RAM, and calculation is exe-
cuted.
* When [CLOSE] button is pressed, the display is shifted to the
copy basic screen of simulation.
* Copying can be performed also by pressing [COLOR]/[BLACK]
key.
<Description of item>
A to H: 1step=0.1mm
C to H: When the adjustment value is increased, the image loss is
increased.
* It is linked with items C to H of SIM50-6.
0
A:
A : 50 ; SIDE1
B : 50 ; SIDE2
C : 20 ; LEAD EDGE
D : 20 ; FRONT_REAR
SIMULATION NO.50-06
LEAD EDGE ADJUSTMENT VALUE(SPF)
50
[ 1~ 99 ]
TEST
CLOSE
OK
Distance A
Item Display item Description of item
Set
range
Default
value
A L4 Distance from the front
surface image lead edge to
the scale of 10mm (RSPF/
DSPF 200%, unit 0.1mm) 0 to 999 —
B L5 Distance from the back
surface image lead edge to
the scale of 10mm (RSPF/
DSPF 200%, unit 0.1mm) 0 to 999 —
C LEAD_EDGE
(SIDE1) Image loss quantity setting
SIDE1 0 to 99 20
D FRONT_REAR
(SIDE1) 0 to 99 20
E TRAIL_EDGE
(SIDE1) 0 to 99 30
F LEAD_EDGE
(SIDE2) Image loss quantity setting
SIDE2 0 to 99 RSPF:
20
DSPF:
30
G FRONT_REAR
(SIDE2) 0 to 99 20
H TRAIL_EDGE
(SIDE2) 0 to 99 RSPF:
30
DSPF:
20
Distance A
0
A:
A 0
B 0
C 20
D 20
L4
L5
LEAD_EDGE(SIDE1)
FRONT_REAR(SIDE1)
SIMULATION NO.50-07
LEAD EDGE ADJUSTMENT (SPF CALC.).
0
0 999
TEST
CLOSE
EXECUTE