Sharp MX-RP20 (serv.man2) Service Manual ▷ View online
MX-RP19 DISASSEMBLY AND ASSEMBLY 5 – 1
MX-RP19
Service Manual
[5] DISASSEMBLY AND ASSEMBLY
1. RSPF unit
(1)RSPF unit
(2)Document pickup roller，Paper feed roller
1) Open the paper feed unit and remove the cover.
2) Remove the holder and remove the document pickup
roller and the paper feed roller.
(3)Separation roller，Torque limiter SPF
1) Open the paper feed unit and remove the cover.
2) Remove the holder and remove the separation roller.
3) Remove the Torque limiter SPF.
(4)Take-up torque limiter
1) Remove the one way coupling, the belt and the Pulley.
Remove the E-ring, and pull the shaft. Remove the
bearing, the holder and the take-up torque limiter.
bearing, the holder and the take-up torque limiter.
No.
Name
1
Document pickup roller
2
Paper feed roller
3
Separation roller
4
Torque limiter SPF
5
Take-up torque limiter
6
Discharge brush
7
Registration roller
8
OC mat
2
2
1
2
1
8
1
2
3
4
3
5
6
7
MX-RP19 DISASSEMBLY AND ASSEMBLY 5 – 2
(5)Discharge brush
1) Open the document tray, and remove the discharge
brush.
When you change the discharge brush, stick it to a stan-
dard.
dard.
(6)Registration roller
1) Open the paper feed unit, and clean the registration
roller.
(7)OC mat
1) Open the RSPF unit, clean the OC mat.
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MX-RP11 OPERATIONAL DESCRIPTIONS 6 – 1
MX-RP11
Service Manual
[6] OPERATIONAL DESCRIPTIONS
1. Outline
2. Document size detection
Size detection on the document tray
The document width is detected by the document width sensor
(SPWS), and the document length is detected by the document
length sensors (SPLS1, SPLS2). The document size is judged from
the document width and the document length as shown in the table
below.
(SPWS), and the document length is detected by the document
length sensors (SPLS1, SPLS2). The document size is judged from
the document width and the document length as shown in the table
below.
When, however, mixed sizes of documents are loaded on the tray,
the maximum size is detected.
the maximum size is detected.
The document scanning mode is available in 400dpi and 600dpi.
No.
Name
Function/Operation
1
Pickup roller
Feeds a document to the paper feed roller.
2
Paper feed roller
Feeds a document to the transport section. Makes a buckle on paper between the registration
roller and this roller to correct the start position of document skew and document image scan.
roller and this roller to correct the start position of document skew and document image scan.
3
Separation roller
Separates a document to prevent double-feeding.
4
Resist roller (Drive)
Performs resist of document transport.
5
Resist roller (Idle)
Applied a pressure to document and the resist roller, and provides transport power of the resist
roller to document.
roller to document.
6
Transport roller 1 (Drive)
Transports document from resist roller to transport roller 2.
7
Transport roller 1 (Idle)
Applied a pressure to document and the transport roller, and provides the transport power of the
transport roller to document.
transport roller to document.
8
Transport roller 2 (Drive)
Transports document to the transport 3 roller.
9
Transport roller 2 (Idle)
Applied a pressure to document and the transport roller, and provides the transport power of the
transport roller to document.
transport roller to document.
10
Transport roller 3 (Drive)
Transports document from the transport roller 2 to the paper exit roller. / Transports document to
the resist roller when reversing the document.
the resist roller when reversing the document.
11
Transport roller 3 (Idle)
Applied a pressure to document and the transport roller, and provides the transport power of the transport roller
to document.
to document.
12
Transport auxiliary roller
Helps to transport document smoothly.
1
3
2
12
4
5
7 6
8 9
11
10
Document size
Document length sensor
SPLS1
SPLS1
SPLS2
AB series
A5
OFF
ON
B5
OFF
ON
11"x 8.5"
OFF
OFF
A4
OFF
OFF
B5R
ON
OFF
A4R
ON
OFF
8.5" x 13"
ON
ON
B4
ON
ON
A3
ON
ON
11" x 17"
ON
ON
Inch series
8.5" x 5.5"
OFF
OFF
11" x 8.5"
OFF
OFF
A4
OFF
OFF
11" x 8.5"R
ON
OFF
8.5" x 13"
ON
ON
8.5" x 14"
ON
ON
A3
ON
ON
11" x 17"
ON
ON
Resolution
Document transport speed
400dpi
279mm/sec
600dpi
186mm/sec
SPWS
SPLS1
SPLS2
MX-RP11 OPERATIONAL DESCRIPTIONS 6 – 2
3. dPaper feed and transport operations
A. Single face scanning
(1) Paper feed operation
The motor is turned ON and the power of the paper feed clutch is
transmitted to the pickup roller and the paper feed roller.
transmitted to the pickup roller and the paper feed roller.
The pickup roller descends to pickup the top document and feed it
to the paper feed roller.
to the paper feed roller.
The paper feed roller feeds a document to the transport section.
At that time, the document is separated by the separation roller to
prevent double-feeding.
prevent double-feeding.
(2) Single face scanning
The lead edge of the fed document is aligned (registration) by the
registration roller, and passed through transport roller 1 to the doc-
ument scanning section, where images are scanned.
registration roller, and passed through transport roller 1 to the doc-
ument scanning section, where images are scanned.
Then the document is passed through transport roller 2 to the
paper exit roller.
paper exit roller.
The paper exit roller (drive pulley) is separated by the paper exit
roller pressure control solenoid.
roller pressure control solenoid.
When the read edge of the document passes the scanning section,
the both rollers are brought into close contact to supply the power
for paper exit.
the both rollers are brought into close contact to supply the power
for paper exit.
1)
Document set (Document empty sensor ON)
2)
Paper feed start (1st sheet)
The pick-up roller descends. (The paper feed motor is booted.)
(The paper feed clutch is ON)
3)
Registration operation (1st sheet)
(Registration clutch ON)
(When a certain time passes after turning ON the registration
clutch, the paper feed clutch is turned OFF.)
clutch, the paper feed clutch is turned OFF.)
4)
Scanning start (1st sheet)
5)
Paper feed start (2nd sheet)
6)
Scanning complete (1st sheet)/Registration operation (2nd
sheet)
sheet)
(When a certain time passes after turning ON the registration
clutch, the paper feed clutch is turned OFF.)
clutch, the paper feed clutch is turned OFF.)
7)
Scanning start (2nd sheet)
8)
Paper exit complete (1st sheet)
9)
Scanning complete (2nd sheet)
10) Paper exit complete (2nd sheet)
11) Pick-up roller lifting up
(After completion of a job, the motor is rotated reversely at a
low speed for a certain time, the paper feed clutch is turned
ON and the pickup roller is lifted.)
low speed for a certain time, the paper feed clutch is turned
ON and the pickup roller is lifted.)
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