Oc Scan Lead Edge Adjustment; Spf Scan Lead Edge Adjustment - Sharp AR-M455N Service Manual

<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
AR-M355N/M455N ADJUSTMENTS 8 - 9
Output result
<Document>
Document set reference
Adjust
with
RRCB.
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 50
(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
Rear edge void Lead edge void
Adjust
with
RRCA.
Image loss
(SIDE)
Image loss
Paper transport direction
(LEAD)
*: For output, select the right side tray.
2
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
0 - 99 15
20
0 - 20 0