Sharp MX-M350 Service Manual page 127

Item
2 TRAY1 Tray 1 resist
adjustment value
3 TRAY2 Tray 2 resist
adjustment value
4 DESK Desk resist
adjustment value
5 BPT Manual tray resist
adjustment value
6 ADU ADU resist
adjustment value
When the set value is increased, the warp amount of paper is
increased. When the adjustment value is decreased, the warp
amount of paper is decreased.
<4> Self print lead edge adjustment
Items which must have been completed before this adjust-
ment.
• LSU right angle adjustment (If there is no distortion in self print,
the adjustment is not required.)
• Print off-center adjustment
• Resist amount adjustment
Items which must be executed after completion of this adjust-
ment.
• Front/rear and left/right void amount setting
• OC scan lead edge adjustment
• SPF scan lead edge adjustment
1) Execute SIM 50-5.
2) Set the lead edge void adjustment value (DENA) as specified
below.
(Standard set value) Paper lead edge void: 3.5mm (DENA: 35)
∗
Set the adjustment value of DENA to 35. (Enter 35 as the
adjustment value of DENA, and press [P] key.)
3) Check the lead edge void area on the self print pattern
(SIM67-1).
(Enter 1 and press [START] key.)
4) If the adjustment result is not satisfactory, perform the follow-
ing procedures.
∗
If the lead edge void area is not 3.5mm:
Change the adjustment value of RRCB and perform the
adjustment. (Change the adjustment value of RRCB and
press [START] key.)
(Shift for the adjustment value change: 0.1mm/step)
SIMULATION 50-5
LEAD EDGE ADJUSTMENT. SELECT 0-20, AND PRESS START.
0.TRAY SELECT 1 1.PRINT START
(ADJUSTMENT DATA)
LEAD EDGE: 2.RRCB 50 3.SIDE2 ADJ.
RESIST: 4.T1 50 5.T2
7.BPT 50 8.ADU
OFF CENTER: 9.T1 50 10.T2
13.BPT 50 14.ADU
(VOID SETTING) 15.LEAD_EDGE(DENA)
16.TRAIL_EDGE(DENB)
<Specification>
Set position
Self print lead Print start
edge position A of
adjustment the output
SIM 50-5 pattern 1
Default
Set MX- MX-
range M350U/ M450U/
M350N M450N
0 - 99 65 60
55 50
55 50
60 55
55 50
2
50
50 6.DESK 50
50
50 11.T3 50 12.T4 50
50
50
30 17.FRONT/REAR
Specification Set value
A = 4.0mm or less Shift of
(Lead and tail 0.175mm
total: 8.0mm or (35ppm) /
less) 0.225mm
(45ppm) for
set value 1.
MX-M350/M450 N/U ADJUSTMENTS 8 - 5
<5> Front/rear and left/right void amount setting
Items which must have been completed before this adjust-
ment.
• LSU right angle adjustment (If there is no distortion in self print,
the adjustment is not required.)
• Print off-center adjustment
• Resist amount adjustment
• Print lead edge adjustment
Items which must be executed after completion of this adjust-
ment.
• OC scan lead edge adjustment
• SPF scan lead edge adjustment
1) Execute SIM 50-1.
(Lead edge image loss/void area adjustment)
1) Set the lead edge image loss adjustment value (LEAD EDGE)
and the paper lead edge void adjustment value (DENA) as fol-
lows.
(Standard set value)
Lead edge image loss: 1.5mm (LEDA: 15)
Paper lead edge void: 3.5mm (DENA: 35)
∗
Set LEAD to 15. (Enter 15 as the adjustment value of LEAD,
and press [P] key.) (0.1mm/step)
∗
Set DENA to 35. (Enter 35 as the adjustment value of
DENA, and press [P] key.) (0.1mm/step)
2) Make a copy at the normal ratio (100%) and check the lead
edge void area and the image loss. (Enter 100 as the set value
of the copy magnification ratio (MAGNIFICATION), and press
[START] key.)
3) If the adjustment result is not satisfactory, perform the follow-
ing procedures.
∗
If the lead edge void are is not 3.5mm:
Change the adjustment value of RRCB and perform the
adjustment. (Change the adjustment value of RRCB and
press [START] key.) (1msec/step)
∗
If the lead edge image loss is not 1.5mm:
Change the adjustment value of RRCA and perform the
adjustment. (Change the adjustment value of RRCA and
press [START] key.)
(Shift for the adjustment value change: 0.2mm/step)
(Rear edge void area adjustment)
Adjust so that the rear edge void area is 3.5mm. (Change the
adjustment 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 adjust-
30
ment value of SIDE, and press [P] key.)
When the adjustment value is changed, the image position is
shifted in the front/rear frame direction.
(Front/rear frame direction void area adjustment)
Adjust so that the total of the front/rear direction void areas is
7.0mm. (Change the adjustment values of FRONT/REAR, and
press [START] key.)
Front frame void area = 3.5mm
If, as shown above, the front and the rear void areas are not even,
use SIM 50-5 to adjust the image off-center position.
[Output pattern]
A
Rear frame void area = 3.5mm