DOWNLOAD Sharp AR-M550 (serv.man11) Service Manual ↓ Size: 14.16 MB | Pages: 59 in PDF or view online for FREE

Model
AR-M550 (serv.man11)
Pages
59
Size
14.16 MB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / (6a) List of sections, Operation panel section, Paper feed transport duplex exit revserse sections.
File
ar-m550-sm11.pdf
Date
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AR-M550/M620  DETAILS OF EACH SECTION  6 - 37
a-1. Resist roller (Idle)
1) Remove the resist roller unit. (See “a. Resist roller unit” in this sec-
tion)
2) Remove the cover.
3) Remove the follower roller tension spring. 
4) Remove the resist roller (Idle) unit.
5) Remove the bearing, and remove the E-ring, the gear, and the pin.
a-2. Resist roller break clutch
1) Remove the resist roller unit. (See “a. Resist roller unit” in this sec-
tion)
2) Remove the cover. (See “a-1. Resist roller (Idle)” in this section)
3) Remove the resist roller break.
4) Remove the E-ring and the resist roller break clutch.
b-3. Transport roller 15
1) Remove the resist roller unit. (See “a. Resist roller unit” in this sec-
tion)
2) Remove the front side cover. 
3) Remove the E-ring, the gear, and the bearing.
4) Remove the coupling bearing on the rear side. 
5) Remove the transport roller 15.
AR-M550/M620  DETAILS OF EACH SECTION  6 - 38
a-4. Resist roller (Drive)
1) Remove the resist roller unit. (See “a. Resist roller unit” in this sec-
tion)
2) Remove the follower roller and the tension spring.
3) Remove the cover on the front side.
4) Remove the transport roller 15.
5) Remove the paper guide.
6) Remove the E-ring, the gear, and the bearing. 
7) Remove the coupling on the rear side. 
8) Remove the resist roller (Drive).
a-5. Resist roller front paper pass detector
1) Remove the resist roller unit. (See “a. Resist roller unit” in this sec-
tion)
2) Remove the cover. (See “a-1. Resist roller (Idle)” in this section)
3) Remove the sensor.
b. Paper dust cleaner
1) Open the front cabinet. Open the process DV cover.
2) Remove the paper dust cleaner.
AR-M550/M620  DETAILS OF EACH SECTION  6 - 39
(Horizontal transport section)
A. Major parts and signal functions
14
13
12
11
10
9
8
7
6
5
4
3
2
1
6
5
4
3
2
1
6
5
4
3
2
1
6
5
4
3
2
1
6
5
4
3
2
1
3
2
1
3
2
1
MPFD2
MPRD1
MPRD2
LPPD
GND2
TXD-LCC
RXD-LCC
/DTR-LCC
/DSR-LCC
RES-LCC
/TRC-LCC
PHR-3
PHR-3
(NC)
B14B-PHDSS-B
CN-18
SMP-06V-NC/SMR-06V-N
+5V-MPFD2
GND2
MPFD2
+5V-LPPD
GND2
LPPD
+5V-MPFD2
GND2
MPFD2
+5V-LPPD
GND2
LPPD
+5V-MPFD2
GND2
MPFD2
+5V-LPPD
GND2
LPPD
SMR-06V-N/SMP-06V-NC
+5V-MPFD2
GND2
GND2
+5V-LPPD
LPPD
MPFD2
14
13
12
11
10
1
9
8
7
6
5
4
3
2
24
23
22
21
20
19
18
17
16
15
25
26
27
28
29
30
PCU PWB
CN-17
M2LUM
GND2
+24V1
/T1PFC
+24V1
/M2PFC
+24V1
/DSKPFC2
GND2
TXD-FIN
RXD-FIN
RES-FIN
/DTR-FIN
/DSR-FIN
GND2
+5V2
/MM
MMCLK
MM-T
GND2
TANSET
+5V2
GND2
GND2
DSW-DSK
+5V2
(NC)
TSW-LED
TSW
(NC)
B30B-PHDSS-B
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
2
2
1
1
GND2
TH-DV
GND2
HUS-DV
MPRD2
GND2
+5V2
+5V-MPRD2
MPRD1
+5V-MPRD1
GND2
TSGOUT
GND2
TCS
+24V1
GND2
PPD
+5V2
DVCH4
DVCH3
DVCH2
DVCH1
+24V1
/PSBC
+24V1
+24V1
/T2PFC
+24V1
/HPFC
CN-12
B30B-PHDSS-B
/HPLS
+24V1
PHNR-02-H+BU02P-TR-P-H
/HPFC
HPFC
MM
5
6
2
3
1
4
5
4
3
2
1
S5B-PH-K-S
GND2
+5V2
/MM
MMCLK
MM-T
T1PPD
Code
Signal 
name
Name
Function/Operation
Type
Model
Note
LPPD
LPPD
LCC paper pass detector
Detection of paper entry from LCC
Transmission 
type
Paper transport system 
sensor
AR-M550/M620  DETAILS OF EACH SECTION  6 - 40
B. Maintenance and parts replacement
(1) Maintenance list
✕
: Check (Clean, replace, or adjust as necessary.)
❍
: Clean
▲
: Replace
∆
: Adjust
✩
: Lubricate
❏
: Shift position
(2) Maintenance and parts replacement
(List of Replacement Parts)
MPFD2
MPFD2
Manual feed paper pass detector 
2
Manual tray paper pass and LCC 
detection
Transmission 
type
Paper transport system 
sensor
MM
MM
Main motor
Drives the paper feed trays 1, 2, 3, 
and 4, and the manual paper feed 
section.
DC brushless 
motor
Paper pass
HPFC
HPFC
Horizontal paper transport clutch
Manual paper feed, paper feed tray 
1 section paper transport roller ON/
OFF control
Electromagnetic 
clutch
MPRD1
MPRD1
Paper feed tray 2 paper pass 
detector 1
Manual feed/paper feed tray 2 paper 
pass detection
Transmission 
type
Paper transport system 
sensor
MPRD2
MPRD2
Paper feed tray 2 paper pass 
detector 2
Manual feed/paper feed tray 2 paper 
pass detection
Transmission 
type
Paper transport system 
sensor
T1PPD
T1PPD
Manual feed paper pass detector 
(Paper feed tray 1)
Paper feed tray 1 paper pass 
detection
Transmission 
type
Paper transport system 
sensor
No.
Name
Function
1
Transport roller 15
Transports paper to the transport resist roller.
2
Transport roller 4
Transports paper from the transport roller 3 to the transport roller 15.
3
Transport roller 3
Transports paper from the paper feed tray 2 and the transport roller 2 to the transport roller 3.
4
Transport roller 2
Transports paper from the manual paper feed and transport roller 2 to the transport roller 3.
5
Transport roller 13
Transports to the transport roller 15.
6
Paper guide lock solenoid
Lock the horizontal transport paper guide.
AR-M550U/M550N (PM: 250K)
When 
calling 
250K 500K 750K 1000K 1250K 1500K 1750K 2000K
Remark
AR-620U/M620N (PM: 300k)
300K 600K 900K 1200K 1500K 1800K 2100K 2400K
Unit name  
No.
Part name
Vertical paper 
transport
1
Transport rollers
✕
❍
❍
❍
❍
❍
❍
❍
❍
2
Transport paper guides
❍
❍
❍
❍
❍
❍
❍
❍
❍
Code
Signal 
name
Name
Function/Operation
Type
Model
Note
1
1
1
2
2
No.
Unit
Parts
a
Relay pass unit
1
Paper guide lock solenoid
2
Lower paper guide unit
❍
3
Paper guides
❍
4
Transport roller 3 (Drive)
✕❍
5
Transport roller 4 (Drive)
✕❍
6
Transport roller 2 (Drive)
✕❍
7
Paper feed tray 2 paper 
pass detector 1
8
Paper feed tray 2 paper 
pass detector 2
b
No. 5 paper feed 
relay unit
1
Manual paper pass 
detector 2
2
No. 5 paper feed paper 
pass detector
a
b-2
b-1
a-1
a-2
a-3
a-3 a-4
a-5
a-6
a-7
a-8
b
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