Sharp AR-RP7 (serv.man2) Service Manual ▷ View online
AR-RP7
EXTERNAL VIEW AND INTERNAL STRUCTURE
– 4 –
[4] EXTERNAL VIEW AND INTERNAL STRUCTURE
1. External view
2. Internal structure
No.
Name
1
Document set tray
2
Document guide
3
Document feed section cover
4
Document transport section cover
5
Document exit section
1
2
3
4
5
14
13
12
11
10
6
4
5
3
8
9
7
2
1
AR-RP7
OPEREATIONAL DESCRIPTIONS
– 5 –
Sensor, detector, etc.
[5] OPEREATIONAL DESCRIPTIONS
1. Major parts of the paper feed section
No.
Code
Name
Type
Function/Operation
1
EMPS
Document set sensor
Photo transmission
Detects presence of documents.
2
FGOD
Open/close sensor
Photo transmission
Detects open/close of the paper feed unit.
3
DFCL
Paper feed clutch
—
—
4
DFD
Paper entry sensor
Photo transmission
Detects presence of documents.
5
RSOL
Pressure release solenoid
—
—
6
CLH
Transport clutch
—
—
7
DTM
SPF motor
Stepping motor
Drives document feed on the tray, transport, and paper exit roller.
8
GSOL
Gate solenoid
—
—
9
—
Interface PWB
—
—
10
DLS1
Document length detection SW (Short) Photo transmission
Detects the document length on the tray.
11
DLS2
Document length detection SW (Long)
Photo transmission
Detects the document length on the tray.
12
OPCLS
Book sensor
Photo transmission
Detects the SPF float.
13
RDD
Paper exit sensor
Photo transmission
Detects presence of documents.
14
SWD
Document width sensor
Volume
Detects the document width on the tray.
No.
Part name
Operation
1
Document length sensor (L2)
Detects the document length on the tray.
2
Document length sensor (L1)
Detects the document length on the tray.
3
Document set sensor
Detects presence of documents.
4
Document width sensor
Detects the document width.
5
Pickup roller
Picks up documents.
6
Paper feed roller
Feeds and transports documents.
7
Paper entry sensor (PAPER)
Detects transport of documents.
8
PS roller
Makes synchronization between the document lead edge and the image lead edge.
9
PS follower roller
Makes synchronization between the document lead edge and the image lead edge.
10
Transport roller 2
Transports documents.
11
Transport follower roller 2
Transports documents.
12
Paper exit sensor (PO)
Detects transport of documents.
13
Paper exit follower roller
Discharges documents.
14
Paper exit roller
Discharges documents.
15
Reverse gate
Opens/closes the document reverse path.
16
Paper exit gate
Separate document exit to the intermediate or the paper exit tray.
17
Intermediate tray
Discharges documents to the intermediate tray during document reverse.
18
Transport roller 1
Transports documents.
19
Transport follower roller 1
Transports documents.
1
2
4
3
5
6
7
8
9
10
19
18
11
13
14
15
16
17
12
AR-RP7
OPEREATIONAL DESCRIPTIONS
– 6 –
2. Out line of operations
[Duplex documents]
1) Document set (Document set sensor ON)
4
2) Document size detection (Document width sensors SWD the doc-
ument width, and document length sen-
sors L1, L2 detect the document length.)
sors L1, L2 detect the document length.)
4
3) Copier COPY key ON
4
4) RSPF motor ON
4
5) DFCL ON
4
6) Pickup roller and paper feed roller rotation
4
7) Paper entry sensor detects the document presence.
4
8) PS roller rotation
4
9) Copying (Front surface of document)
4
10) Transport roller rotation
4
11) Paper exit roller rotation
4
12) Paper exit gate falls down.
(Documents are discharged to the intermediate tray.)
4
13) Reverse gate falls down.
4
14) Paper exit roller reverse rotation
(Documents are fed to the reverse path.)
4
15) Paper entry sensor detects document presence.
4
16) PS roller rotation
4
17) Copying (Back surface of document)
4
18) Transport roller rotation
4
19) Paper exit roller rotation
4
20) Paper exit gate falls down
(Documents are discharged to the intermediate tray.)
4
21) Reverse gate falls down.
4
22) Paper exit roller reverse rotation
(Documents are fed to the reverse path.)
4
23) Paper entry sensor detects document presence.
4
24) PS roller rotation
4
25) Paper exit roller rotation
4
26) Paper exit gate lifts up.
4
27) Documents are fed to the paper exit tray.
4
28) Next document
3
(YES)
3
Go to 4).
4
(NO)
29) RSPF motor OFF
3. Document size detection
1) Document size detection with the document set tray
When documents are set on the document set tray in the auto selection
mode of paper/copy magnification ratio, the document size is detected
and paper and the copy magnification ratio are automatically selected.
and paper and the copy magnification ratio are automatically selected.
When different sizes of documents are set, the max. size is detected.
The document width is detected by the document width sensors (SWD),
and the document length is detected by the document length sensors
and the document length is detected by the document length sensors
(L1, L2) to identify the document size. Judgment of the document size is
made in a certain timing after detecting the document with the docu-
ment set sensor (EMPS).
ment set sensor (EMPS).
Note: Detection sensor ON:
o
, OFF:
n
Document set size and
set direction
Document length sensor
L1
L2
AB series
A5
n
n
B5
n
n
A5R
n
n
A4
n
n
B5R
o
n
A4R
o
n
8.5” x 13”
o
o
B4
o
o
A3
o
o
Inch series
8.5” x 5.5”
n
n
8.5” x 5.5”R
n
n
11” x 8.5”
n
n
11” x 8.5”R
o
n
8.5” x 13”
o
o
8.5” x 14”
o
o
11” x 17”
o
o
AR-RP7
ADJUSTMENTS
– 7 –
[6] ADJUSTMENTS
(1) RSPF auto white correction pixel
adjustment
[Function]
The white correction start pixel position is automatically adjusted.
This adjustment is performed after the lens unit is replaced.
This adjustment is performed after the lens unit is replaced.
[Operation]
(2) RSPF magnification ratio adjustment
Note: • When performing this adjustment, check that the CCD unit is
properly installed.
• When performing this adjustment, check that the OC mode
adjustment in copying is completed.
1) Place a scale on the document table as shown below, and make a
normal copy to make a test chart.
2) Set the test chart to the RSPF and make a normal copy.
3) Compare the copy and the test chart.
If an adjustment is needed, perform the following procedures.
4) Execute SIM 48-5.
5) The current correction value is displayed on the display section in
two digits.
6) Enter the set value, and press the START key.
The entered correction value is stored and a copy is made.
7) Change the TEXT mode.
The TEXT lamp lights up, and the current correction value of the
back surface sub scanning direction magnification ratio is displayed
on the display section in two digits.
on the display section in two digits.
8) Enter the set value, and press the START key.
The entered correction value is stored and a copy is made.
<Adjustment specifications>
(3) RSPF document off center adjustment
Note: When performing this adjustment, check that the paper off-cen-
ter is properly adjusted.
1) Set the center position adjustment test chart (made by yourself) on
the RSPF.
<Adjustment specifications>
Draw a line in the center of paper. (In the scanning direction)
2) Make a normal copy from the manual feed tray, and compare the
copy and the test chart.
If an adjustment is required, perform the following procedures.
3) Execute SIM 50-12.
4) The current off-center adjustment value is displayed on the display
section in two digits.
5) Enter the set value and press the START key.
The entered correction value is started and a copy is made.
<Adjustment specifications>
㪪㪟㪘㪛㪠㪥㪞㩷㪧㪦㪪㪠㪫㪠㪦㪥㩷㪘㪛㪡㪬㪪㪫㪤㪜㪥㪫㪅㩷㪚㪦㪤㪧㪣㪜㪫㪜㪅
㪲㪈㪍㪇㪴㩷
SIMULATION 63-7
SIMULATION 63-7
SHADING POSITION ADJUSTMENT. PRESS START.
㪪㪟㪘㪛㪠㪥㪞㩷㪧㪦㪪㪠㪫㪠㪦㪥㩷㪘㪛㪡㪬㪪㪫㪤㪜㪥㪫㪅㩷㪜㪯㪜㪚㪬㪫㪠㪥㪞㪅㪅㪅㩷
㪪㪟㪘㪛㪠㪥㪞㩷㪧㪦㪪㪠㪫㪠㪦㪥㩷㪘㪛㪡㪬㪪㪫㪤㪜㪥㪫㪅㩷㪜㪩㪩㪦㪩㪅㩷
㪲㩷 㩷 㪇㪴㩷
SIMULATION 63-7
SIMULATION 63-7
Open the SPF unit and press the [START]
key. [ ] indicates the order number of
the pixel of the white sheet for SPF
exposure correction in the SPF position.
When the adjustment is completed
normally, "COMPLETE" is displayed,
and data are written into the EEPROM.
Press the [START] key.
(Initial screen)
(During execution)
The SPF white correction start pixel
= Displayed pixel position - 34
If the simulation is executed with the
SPF unit closed, an error is resulted.
(Initial screen with the execution result displayed)
Normal end
Abnormal end
Note: Since the copy is used as the test chart, place the scale
in parallel to the front edge of the copy glass.
Mode
Spec
SIM
Set value
Set
range
Magnification
ratio adjustment
ratio adjustment
Normal:
m
1.0%
SIM 48-5
3: Surface
3: Surface
4: Back
Add 1:
0.1% increase
Reduce 1:
0.1% decrease
1 ~ 99
Mode
Specification
SIM
Set value
Set
range
Document
off-center
off-center
Simplex:
Center
m
3.0mm
Duplex:
Center
m
3.5mm
SIM 50-12
2: SPF surface
4: SPF back
2: SPF surface
4: SPF back
Add 1:
0.1mm shifted to
R side.
R side.
Reduce 1:
0.1mm shifted to
L side.
L side.
1 ~ 99
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