Read Sharp MX-RP20 Service Manual online
SERVICE MANUAL
Parts marked with "
" are important for maintaining the safety of the set. Be sure to replace these parts with
specified ones for maintaining the safety and performance of the set.
SHARP CORPORATION
[1] PRODUCT OUTLINE/SPECIFICATIONS
1. Product outline . . . . . . . . . . . . . . . 1-1
2.
Basic specifications . . . . . . . . . . . . 1-1
3.
RSPF Detection . . . . . . . . . . . . . . 1-1
[2] EXTERNAL VIEW AND INTERNAL
STRUCTURE
1. External structure . . . . . . . . . . . . . 3-1
2. Sensors, Switches. . . . . . . . . . . . . 3-1
3. Motors, Clutches, Solenoids, PWB. . 3-2
[3] MAINTENANCE
1. Maintenance list . . . . . . . . . . . . . . 3-1
[4] ADJUSTMENTS
1. Image focus adjustment (RSPF front
surface mode) adjustment. . . . . . . 4-1
2. Main scanning direction image magni-
fication ratio adjustment (RSPF mode)
. . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
3. Sub scanning direction image magnifi-
cation ratio adjustment (RSPF mode)
. . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
4. Scan image off-center adjustment
(RSPF mode) . . . . . . . . . . . . . . . . 4-4
5. Copy mode image loss adjustment
(RSPF mode) . . . . . . . . . . . . . . . . 4-5
[5] DISASSEMBLY AND ASSEMBLY
1. RSPF unit . . . . . . . . . . . . . . . . . . . 5-1
[6] OPERATIONAL DESCRIPTIONS
1. Outline . . . . . . . . . . . . . . . . . . . . . . 6-1
2. Document size detection . . . . . . . . 6-1
3. Paper feed and transport
operations . . . . . . . . . . . . . . . . . . . 6-2
[7] ELECTRICAL SECTION
1. Block diagram . . . . . . . . . . . . . . . . 7-1
2. Actual wiring diagram . . . . . . . . . . 7-2
TopPage
CONTENTS
CODE: 00ZMXRP20
NS1E
MODEL
MX-RP20 N
DIGITAL MULTIFUNCTIONAL SYSTEM
OPTION
REVERSING SINGLE PASS FEEDER
MX-RP20
N PRODUCT OUTLINE/SPECIFICATIONS 1 – 1
MX-RP20
Service Manual
[1] PRODUCT OUTLINE/SPECIFICATIONS
1.Product outline
This machine is a document auto feeder attached to a digital copier.
It feeds originals automatically to allow continuous copying.
2.Basic specifications
3.RSPF Detection
*The size of 5.5x8.5R, A5R can’t be detected.
Type
RSPF (Reversing single pass feeder)
Scan Speed
MX-RP20
N
Monochrome (A4/8.5x11)
Color (A4/8.5x11)
Copy
Single; 56 pages/min. (600x400dpi, 4bit) 38 pages/
min. (600x600dpi, 4bit)
Duplex; 20 pages/min. (600x400dpi, 4bit) 17 pages/
min. (600x600dpi, 4bit)
min. (600x600dpi, 4bit)
Duplex; 20 pages/min. (600x400dpi, 4bit) 17 pages/
min. (600x600dpi, 4bit)
N/A
Fax
Single : 56 sheets/min. (200x200dpi, 1bit)
Duplex : 20 pages/min. (200x200dpi, 1bit)
Duplex : 20 pages/min. (200x200dpi, 1bit)
N/A
Internet FAX
Single : 56 sheets/min. (200x200dpi, 1bit)
Duplex : 20 pages/min. (200x200dpi, 1bit)
Duplex : 20 pages/min. (200x200dpi, 1bit)
N/A
Scanner
Single : 56 sheets/min. (200x200dpi, 1bit)
Duplex : 20 pages/min. (200x200dpi, 1bit)
Duplex : 20 pages/min. (200x200dpi, 1bit)
Single : 56 sheets/min. (200x200dpi, 8bit)
Duplex : 20 pages/min. (200x200dpi, 8bit)
Duplex : 20 pages/min. (200x200dpi, 8bit)
Document Direction
Upward standard (1toN feeding standard)
Document standard position
Center standard (Rear one-side standard for random feeding)
Document transport method
Sheet-through method
Document size
Standard type
Refer to the separate table
Long paper
1,000mm (Monochrome 2 levels only)
Internet Fax 600x600dpi: Max. 800mm
Scan 400dpi or more: Long paper is not available
Internet Fax 600x600dpi: Max. 800mm
Scan 400dpi or more: Long paper is not available
Mix feeding (same AB or inch system, same width)
available
Random feeding (different combination of AB /inch
system, different width)
system, different width)
available (Combination allowed: A3&B4, B4&A4R, A4&B5, B5&A5, 11&8.5-inch. AMS effective. 2-sided
scanning is disabled during random feeding.)
scanning is disabled during random feeding.)
Document weight
1-sided
Thin paper: 35-49g/m2, 9-13-lb. Bond
Plain paper: 50-128g/m2, 13-32 lb. Bond
*Thin paper mode is set up for the thin paper.
41 sheets/min.(600x400dpi),
27 sheets/min.(600x600dpi) (A4/8.5x11 )
27 sheets/min.(600x600dpi) (A4/8.5x11 )
2-sided
50 - 105 g/m2, 13 - 28 lbs Bond
Document capacity
Max. 100 sheets (80g/m2, 21lb. Bond) or max.13mm,1/2 inch or less
Types of document that may not be transported
The following documents are NOT allowed;
OHP, second original drawing, tracing paper, carbon paper, thermal paper, wrinkled / broken / torn
document, document with cuts and pastes, documents printed by an ink ribbon, and perforated document
except 2-punched/ 3-punched (Perforated document by punch unit is allowed.)
OHP, second original drawing, tracing paper, carbon paper, thermal paper, wrinkled / broken / torn
document, document with cuts and pastes, documents printed by an ink ribbon, and perforated document
except 2-punched/ 3-punched (Perforated document by punch unit is allowed.)
Paper detection
Yes
Detectable paper size
Auto detection (Refer to the separate table)
Paper Feeding Direction
Right hand feeding
Stamp
Option
Reliability
MCBJ/MCBF: in compliance with main unit
Life
In compliance with the main unit
Power Source
Provided from the main unit
Dimensions
W580 x D465 x H155mm, W22-54/64 x D18-20/64 x H6-7/64 inch
Weight
7.0 kg, 15.4 lbs
Outer color
Warm Gray
Option detection
Std.
Installation Easiness
By Service person
Packaged Item
Glass Cleaner
1
1x17
8.5x14
8.
5x13.5(216x3
43)
8.
5x13.4(216x3
40)
8
.5x13(216x33
0)
8.5x1
1
8.5x1
1R
5.5x8.5
5.5x8.5R
A3
B4
A4
A4R
B5
B5R
A5
A5R
8K
16K
16KR
Inch-1
Yes
Yes
No
No
No
Yes
Yes
Yes
No
Yes
No
Yes
No
No
No
No
No
No
No
No
Inch-2
Yes
No
No
No
Yes
Yes
Yes
Yes
No
Yes
No
Yes
No
No
No
No
No
No
No
No
Inch-3
Yes
No
No
Yes
No
Yes
Yes
Yes
No
Yes
No
Yes
No
No
No
No
No
No
No
No
AB-1
Yes
Yes
No
No
No
Yes
No
No
No
Yes Yes
Yes Yes Yes Yes Yes No
No
No
No
AB-2
Yes
No
No
No
Yes
Yes
No
No
No
Yes Yes
Yes Yes Yes Yes Yes No
No
No
No
AB-3
Yes
No
No
No
Yes
Yes
No
No
No
Yes Yes
Yes Yes No
No
Yes
No
Yes
Yes
Yes
AB-4
Yes
No
No
Yes
No
Yes
No
No
No
Yes Yes
Yes Yes Yes Yes Yes No
No
No
No
AB-5
Yes
No
Yes
No
No
Yes
No
No
No
Yes Yes
Yes Yes Yes Yes Yes No
No
No
No
MX-RP
20 N EXTERNAL VIEW AND INTERNAL STRUCTURE 3 – 1
MX-RP11
Service Manual
[2] EXTERNAL VIEW AND INTERNAL STRUCTURE
1. External structure
2. Sensors, Switches
1
2
3
4
No.
Name
Function/Operation
1
Document feeding area cover
Open this cover to remove an original misfeed or clean the paper feed roller.
2
Original guides
These help ensure that the original is scanned correctly.
Adjust the guides to the width of the original.
Adjust the guides to the width of the original.
3
Document feeder tray
Place originals in this tray. 1-sided originals must be placed face up.
4
Original exit tray
Originals are delivered to this tray after scanning.
SPLS2
SPLS1
SPPD1
SPED
SPPD2
SPPD3
SPPD4
SOCD
SCOV
Name
Signal
Type
Function/Operation
RSPF cover open/close detec-
tor
tor
SCOV
Micro switch
Detects open/close of the RSPF cover.
RSPF open/close sensor
SOCD
Transmission type
Detects open/close of the RSPF unit.
Document sensor
SPED
Transmission type
Detects document empty in the RSPF paper feed tray.
Paper size detector 1
SPLS1
Transmission type
Detects the document length in the RSPF paper feed tray.
Paper size detector 2
SPLS2
Transmission type
Detects the document length in the RSPF paper feed tray.
Document transport sensor 1
SPPD1
Transmission type
Detects paper feed and the document size in random paper feed.
Document transport sensor 2
SPPD2
Transmission type
Detects paper pass.
Document transport sensor 3
SPPD3
Transmission type
Detects paper pass.
Document transport sensor 4
SPPD4
Transmission type
Detects paper exit and switchback.
MX-RP
20 N EXTERNAL VIEW AND INTERNAL STRUCTURE 3 – 2
3. Motors, Clutches, Solenoids, PWB
SPFM
SPM
SRRC
SPRS
1
Signal name
Name
Type
Function/Operation
SPFM
Transport motor
Stepping motor
Drives the transport roller.
SPM(SPUM)
Paper feed motor
Stepping motor
Controls the paper feed roller. (Controls the timing of the paper feed roller.)
SPRS
Pressure release solenoid
Electromagnetic solenoid
Releases the pressure of the transport roller 3 when reversing a document and
transporting it to the resist roller.
transporting it to the resist roller.
SRRC
PS clutch
Electromagnetic clutch
Controls ON/OFF of resist roller.
No.
Name
Function/Operation
1
RSPF driver PWB
Drives the motor and the clutch in the RSPF section.