Sharp MX-M350 Service Manual page 131

<6> OC scan lead edge adjustment
Items which must have been completed before this adjust-
ment.
• Adjustment on the engine side (If there is no problem in self
print, no need to adjust.)
• OC scan distortion adjustment
• SPF scan distortion adjustment
• OC scan magnification ratio adjustment
Items which must be executed after completion of this adjust-
ment.
• SPF scan lead edge adjustment
• Original off-center adjustment
1) Set an original on the original table.
2) Enter SIM 50-1.
3) Make a copy.
4) Select the number to be set on the right of the LCD, and per-
form the adjustment of each item.
5) Select "4: RRC-B" so that the distance between the paper lead
edge and the copy image lead edge is within 4.0mm. Change
the value with 10-key and perform the copy adjustment.
6) Select "5: DEN-B" so that the white spot in the latter half of
copy (rear edge void) is within 4.0mm. Change the value with
10-key and perform the copy adjustment.
(The rear void adjustment is changed by the step of 0.1mm.)
• When the rear edge void is too small, increase the value.
• When the rear edge void is too great, decrease the value.
7) Select "3: RRC-A," change the value with 10-key, and adjust
the document scan start position.
8) Press [CA] key to cancel the simulation.
SIMULATION 50-1
LEAD EDGE ADJUSTMENT. SELECT 0-9, AND PRESS START.
0.TRAY SELECT 1 1.COPY START
2.MAGNIFICATION 100
(ADJUSTMENT DATA) 3.RRCA 50
(IMAGE LOSS SETTING) 5.LEAD
(VOID SETTING) 7.LEAD_EDGE(DENA)
8.TRAIL_EDGE(DENB)35
<Specification>
Item Content
(Lead edge adjustment value)
3 RRCA Document scan
start position
4 RRCB Resist roller
clutch ON timing
adjustment value
10 SIDE2 ADJ. Correction value
for RRCB when
refereeing from
ADU
(Image loss set value)
5 LEAD Lead edge image
loss set value
6 SIDE Side image loss
set value
(Void set value)
7 LEAD_EDGE Lead edge void
(DENA) set value
8 TRAIL_EDGE Rear edge void
(DENB) adjustment value
9 FRONT/ Front/Rear void
REAR adjustment value
2
4.RRCB 50 10.SIDE2 ADJ. 50
15 6.SIDE 20
35
9.FRONT/REAR 32
Set
Specification Default
range
4.0mm or 0 - 99 50 Set value
less 1: 0.1mm
shift
4.0mm or
less
1 - 99 50
0 - 99 15 Set value
1: 0.1mm
shift
20
Total 8mm 0 - 99 35 Set value
or less 1: 0.1mm
shift
Total 8mm
or less
Total 8mm
32
or less
MX-M350/M450 N/U ADJUSTMENTS 8 - 9
<Document>
Document set reference
FR void
<7> SPF scan lead edge adjustment
Items which must have been completed before this adjust-
ment.
• Adjustment on the engine side (If there is no problem in self
print, no need to adjust.)
• SPF scan distortion adjustment
• SPF scan lead edge adjustment
• SPF magnification ratio adjustment
Items which must be executed after completion of this adjust-
ment.
• SPF/DSPF off-center adjustment
1) Make a copy of a chart which indicates the image loss amount
of each side with SPF/DSPF.
2) Execute SIM50-6 and change the values.
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
(IMAGE LOSS SETTING)
SIDE1: 5.LEAD_EDGE 15 6.FRONT/REAR
SIDE2: 8.LEAD_EDGE 15 9.FRONT/REAR
<Set values 1>
Item
0 TRAY SELECT Paper feed tray
selection
1 COPY START Copy START (Default)
2 MAGNIFICATION Print magnification ratio
(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_EDGE Front surface lead edge
image loss set value
6 FRONT_REAR Front surface side edge
image loss set value
7 TRAIL_EDGE Front surface rear edge
image loss set value
(Image loss set value: SIDE 2)
8 LEAD_EDGE Back surface lead edge
image loss set value
9 FRONT/REAR Back surface side edge
image loss set value
10 TRAIL_EDGE Back surface rear edge
image loss set value
Output result
Rear edge void Lead edge void
Adjust
with
Adjust
RRCA.
with
RRCB.
Image loss
(SIDE)
Image loss
Paper transport direction
(LEAD)
*: For output, select the right side tray.
2
50 4.SIDE2 50
20 7.TRAIL_EDGE 0
20 10.TRAIL_EDGE 0
Set
Default
range
1 - 6
–
25 -
200%
0 - 99 50
0 - 99 15
20
0 - 20
0 - 99 15
20
0 - 20
–
–
–
0
0