Sharp AR-405 (serv.man9) Service Manual ▷ View online
8) Measure dimensions X and Y of the copied scale image.
X: Distance between the copy image lead edge and the scale
of 10mm
Y: Distance between the paper lead edge and the copy image
lead edge
9) Set the document mace in procedure 1) and 2) on the SPF, and
make a copy at 200% in the SPF mode.
10) Measure the dimension L3 of the copied scale image.
Z: Distance between the copy image lead edge and the scale
of 10mm
11) Enter L1, L2, and L3 as follows:
L1 = X
×
10
L2 = Y
×
10
L3 = Z
×
10
12) Cancel the simulation mode, make a copy in the document table
mode and in the SPF mode, and check that the lead edge image
loss and the void area are in the specified range as shown
below:
loss and the void area are in the specified range as shown
below:
Lead edge image loss: 1.5
∼
3.0mm
Lead edge void area:
1.5
∼
3.0mm
If the above condition is not satisfied.
13) Enter the SIM 50-1 mode.
14) Set the scale on the document table in the same manner as in
procedure 3). Make a copy at 50% and at 400% in the document
table mode.
table mode.
15) Measure the distance between the paper lead edge and the
copy image lead edge of 500% copy and 400% copy.
16) Check that there is no difference between the measured dis-
tance of 50% copy and that of 400% copy.
If the difference is more than 1.5mm, change and adjust the
RRC-A value.
RRC-A value.
Repeat procedures 12) to 16) until the above condition is satisfied.
17) Use the document made in procedures 1) and 2) and make a
copy at 50% and at 400% in the SPF mode.
18) Measure the distance between the paper lead edge and the
copy image lead edge of 505 copy and that of 400% copy.
19) Check that there is no difference between the above measured
distance of 50% copy and that of 400% copy.
If the difference between the distances is more than 1.5mm,
change and adjust the SPF value.
change and adjust the SPF value.
Repeat procedures 17) and 18) until the above condition is satisfied.
20) If the lead edge void area is outside the specified range, change
the DEN-A value.
21) If the lead edge image loss is outside the specified range,
change the IMAGE LOSS value.
22) If the rear edge void area is outside the specified range, change
the DEN-B value.
23) If the rear edge void area is outside the specified range, change
the REAR LOSS (SPF) value.
IMAGE
LOSS
LOSS
Lead edge
image loss
image loss
1.5 to
3.0 mm
3.0 mm
The greater the set value is, the
greater the image loss is.
greater the image loss is.
DEN-A
Lead edge
void area
void area
1.5 to
3.0 mm
3.0 mm
The greater the set value is, the
greater the void area is.
greater the void area is.
DEN-B
Rear edge
void area
void area
1.5 to
3.0 mm
3.0 mm
The greater the set value is, the
greater the void area is.
greater the void area is.
REAR
LOSS
LOSS
Rear edge
image loss
image loss
1.5 to
3.0 mm
3.0 mm
The greater the set value is, the
greater the image loss is.
greater the image loss is.
10
20
30
40
50
X
Y
Paper lead
edge
edge
400% enlargement copy
10
20
30
40
50
Z
Paper lead
edge
edge
200% enlargement copy
Image loss
Lead edge void area
Rear edge void area
AR-405
1/21/1999
7 – 14
(8) Original off-center adjustment
1) Place the reference original for the off-center adjustment on the
original table.
2) Execute SIM 50-12.
3) Press the PRINT button after lighting the RPL, and a copy will be
made. If the arrow image on the copy paper is shifted from the
center line as shown below, change the set value and adjust.
center line as shown below, change the set value and adjust.
In the case of A
decrease the set value.
In the case of B
increase the set value.
Adjustment specification:
Within
±
1.7mm
(One point of the set value corresponds to the change of
about 0.1mm.)
about 0.1mm.)
[In the case of the AR-280]
4) Make a copy of A4 (8 1/2
×
11)original with the SPF, and measure
the off-center.
5) Change value C so that the off-center is within the specified
range.
[In the case of the AR-285/335]
4) Make a copy of A4 (8 1/2
×
11) original with the RADF, and
measure the off-center.
5) Change value B so that the off-center is within the specified
range.
6) Press the CA key to cancel the simulation.
D. Image density adjustment
The image density adjustment is required for the following copy
quality mode by using the simulation.
quality mode by using the simulation.
There are two methods; the collective adjustment and the individual
adjustment of the copy quality mode.
adjustment of the copy quality mode.
Copy mode (AR-230/280/285/330/335 series)
Copy quality mode
Collective
adjustment
Individual
adjustment
Binary
value mode
value mode
Auto mode
SIM46-2
Character mode
SIM46-9
Character/Photo mode
SIM46-10
Photo mode
SIM46-11
Multi value
(Hifi) mode
(Hifi) mode
Auto mode
SIM46-3
Character mode
SIM46-5
Character/Photo mode
SIM46-6
Photo mode
SIM46-7
Copy mode3 (AR-4xx series)
Copy quality mode
Collective
adjustment
Individual
adjustment
Binary
value
mode
value
mode
Auto mode
SIM46-2
Character mode
SIM46-9
Character/Photo mode
SIM46-10
Photo (error diffusion)
mode
mode
SIM46-11
Multi value
(Hifi) mode
(Hifi) mode
Photo (Dither pattern)
mode (Japan only)
mode (Japan only)
SIM46-7
(1) Test chart setting
1) Place a test chart (UKOG-0162FCZZ) on the original table.
2) Place several sheets of A3 (11
×
17) white paper (Sharp’s
specified paper) on the test chart at the center reference.
Test chart comparison
UKOG-0162FCZZ
DENSITY No.
1
2
3
4
5
6
7
8
9
10
W
UKOG-0089CSZZ
DENSITY No.
0.1
0.2
0.3
0.5 1.9
0
KODAK GRAY
SCALE
1
2
3
4
19
A
SHARP
CORPORATION
MADE IN JAPAN
A
B
Paper exit
direction
direction
Paper center
UKOG-0162FCZZ
1
10
W
2
3
4
5
6
7
8
9
AR-405
7 – 15
1/21/1999
(2) Density adjustment procedure
a. Collective adjustment of two or more copy quality modes
Normally this adjustment is performed with SIM 46-2 and SIM 46-3. In
this method, two or more copy density adjustments in different modes
can be adjusted collectively.
this method, two or more copy density adjustments in different modes
can be adjusted collectively.
1) Execute SIM 46-2 and SIM 46-3.
(AR-203/280/265/330/335 series)
(Binary value mode)
(Binary value mode)
Quality mode
Linked simulation data
AE3.0 (AE)
CH3.0 (Character)
Sim46-9
MIX3.0 (Character/Photo)
Sim46-10
PH3.0 (Photo)
Sim46-11
(AR2X1/3X1/4XX/250/XX5 series)
Quality mode
Linked simulation data
AE3.0 (AE)
CH3.0 (Character)
Sim46-9
MIX3.0 (Character/Photo)
Sim46-10
PH3.0 (2)
Sim46-11 (Photo error diffusion)
PH3.0 (256)
Sim46-7 (Photo multi value dither)
(Japan only)
(Japan only)
2) Press the COPY button to make a copy.
Check that the copy density is as shown in the table below. If not,
change the adjustment value.
change the adjustment value.
•
Adjustment spec
Mode
EXP
Chart
No.
Adjustment
level
Chart
No.
Adjustment
level
Character
3
3
Copied.
2
Not copied.
Character
/Photo
/Photo
3
3
Copied.
2
Not copied.
Photo
3
3
Copied.
2
Not copied.
Auto
3
Copied.
2
Not copied.
If the copy density is too light, increase the adjustment value.
If the copy density is too dark, decrease the adjustment value.
Adjustment range: 30
∼
170
b. Individual adjustment of each copy quality mode
This adjustment is used when a different density level for different
copy quality mode is required. SIM 46-5 to -7 and SIM 46-9 to -11 are
used.
copy quality mode is required. SIM 46-5 to -7 and SIM 46-9 to -11 are
used.
1) Execute the simulation corresponding to the copy quality mode to
be adjusted.
2) Press the COPY button to make a copy.
Check that the copy density is as shown in the table below. If not,
change the adjustment value.
change the adjustment value.
For the auto mode, there is only one adjustment value. For the
other modes, the adjustment value for each density level must be
adjusted.
other modes, the adjustment value for each density level must be
adjusted.
E. Paper feed
(1) Manual paper feed size detection level adjustment
1) Execute SIM 40-2.
2) Extend the manual paper feed guide fully.
3) Press [MAX POSITION] on the LCD of the operation panel to
highlight it.
4) Press [EXECUTE] on the LCD of the operation panel to highlight
it.
If normal, the highlight is shifted from [MAX POSITION] to [MIN
POSITION].
POSITION].
5) Narrow the manual paper feed tray guide fully.
6) Press [EXECUTE] on the LCD of the operation panel to highlight
it.
Check that [COMPLETE] is highlighted.
7) Press the CA key to cancel the simulation.
AR-405
1/21/1999
7 – 16
I. RADF (AR-RF2)
(1) Document lead edge stop position adjustment
•
The ADF document lead edge stop position is adjusted by using
SIM 53.
SIM 53.
•
When shipping, the lead edge is set to (8). An adjustment may be
required depending on documents.
The adjustment range is 8mm (8 steps) in the stopper side and
7mm (7 steps) in the glass side. (1mm: 1 step) For each mode of
single, and duplex, the adjustment value can be set independently.
required depending on documents.
The adjustment range is 8mm (8 steps) in the stopper side and
7mm (7 steps) in the glass side. (1mm: 1 step) For each mode of
single, and duplex, the adjustment value can be set independently.
1) Execute SIM 53-1 on the copier.
2) Enter the stop position adjustment value in each mode.
[Explanation of abbreviation]
NORMAL (S):
Single, normal paper stop position adjustment
NORMAL (D):
Duplex, normal paper stop position adjustment
08:
±
0.0000mm
00: –8.000mm
09: +1.000mm
(Initial value)
01: –7.000mm
10: +2.000mm
02: –6.000mm
11: +3.000mm
03: –5.000mm
12: +4.000mm
04: –8.000mm
13: +5.000mm
05: –8.000mm
14: +6.000mm
06: –8.000mm
15: +7.000mm
07: –8.000mm
(2) Resist/timing/paper exit sensor adjustment
1) Execute SIM 53-2 on the copier
2) Select each sensor and press the EXECUTE key, and the adjust-
ment will be performed automatically.
REGIST (DFD):
Resist sensor
TIMING (DTD):
Timing sensor
REVERSE (RDD):
Reverse sensor
(3) Test mode with DIP switch
The RADF (ADF) single unit operation can be checked with the DIP
switch on the control PWB shown below.
switch on the control PWB shown below.
(Control PWB)
(DIP switch)
(Operating procedure)
1) Remove the control PWB cover.
0
10 11 12 13 14 15
2
3
4
5
6
7
(8)
9
1
8mm
7mm
Stopper
Glass
Viewed from the operator
DIP switch
CPU
EEP ROM
G/A
Push switch
OFF
ON
SW
No.1
2
3
4
5
1)
2)
1)
AR-405
7 – 25
1/21/1999
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