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
PREV: Sharp AR-M550 (serv.man10) Service Manual

Sharp AR-M550 (serv.man11) Service Manual ▷ View online

AR-M550/M620  DETAILS OF EACH SECTION  6 - 49
(Duplex section)
A. General
When duplex print is selected, paper one surface of which was printed
is switched back to feed to the duplex section to make duplex print.
B. Major parts and signal functions
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/ADM1/A
/ADM1A
B9B-PH-K-S
CN-5
/ADM1B
/ADM1/B
/ADM2/A
/ADM2/B
/ADM2A
/ADM2B
+24V2
B32B-PHDSS-B
+24V1
GND2
+24V1
/RRC
(NC)
+24V(DSW)
+24V1
+5V-APPD1
+5V-APPD2
+5V-PFD2
+5V-DSWD
+5V-AINPD
+5V-THPS1
+5V-THPS2
PFD2
/CFM-ADU
THPS2
TURM
TCBWH
APPD1
APPD2
AINPD
/CFM-AM1
DSWD
/DGS
(NC)
DSW-L
CN-7
GND2
GND2
TCBIAS
(NC)
DRAWER
QR/P4-32S-C(01)/QR/P4-32P-C(01)
GND2
PFD2
PHR-3
APPD1
PHR-3
GND
APPD2
PHR-3
SMR-12V-N/SMP-12V-NC
+5V-APPD1
+5V-APPD2
+5V-PFD2
GND2
GND2
179228-3
THPS2
+5V-THPS2
2
1
GND2
PHR-2
TURM
PHNR-03-H+BU03P-TR-P-H
GND2
GND2
GND2
AINPD
+5V-AINPD
+5V-AINPD
AINPD
179228-3
179228-3
DSW-ADU
+5V-DSWD
/ADUM1/A
/ADUM1A
/ADUM1B
/ADUM1/B
SMR-06V-N/SMP-06V-NC
+24V2
+24V2
/ADUM2/A
/ADUM2A
/ADUM2B
/ADUM2/B
SMR-06V-N/SMP-06V-NC
+24V2
+24V2
PCU PWB
/CFM-DV
DRIVER
PWB
TURM
ADM2
DSW-ADU
APPD1
DSW-L
THPS2
APPD2
PFD2
ADM1
AINPD
3
2
1
4
2
1
DGS
2
1 DGS
PHNR-02-H+BU02P-TR-P-H
+24V1
/ADUM2/A
/ADUM2A
/ADUM2B
/ADUM2/B
/ADUM1/A
/ADUM1A
/ADUM1B
/ADUM1/B
+5V-APPD1
+5V-APPD2
+5V-AINPD
GND2
APPD1
APPD2
AINPD
/DGS
+24V2
+24V(DSW)
(NC)
+24V1
GND2
TURM
DSW-L
+5V-PFD2
+5V-THPS2
PFD2
THPS2
/TCB-PWM
DSW-ADU
+5V-DSW
/CFM-ADU
/TCBIAS
+5V-PFD2
THPS2
PFD2
+5V-THPS2
DSW-L
DSW-L
+24V1
GND2
TURM
/TCB-PWM
/CFM-ADU
/TCBIAS
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2
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DSW-L
DSW-L
GND2
(NC)
/FBIAS
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2
1
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DSW-L
DSW-L
GND2
F-GND
B6B-PH-K-S
/FBIAS
/FBIAS
FB PWB
LEFT DOOR UNIT
FPS-187
FPS-187
Bias+
Bias-
PS-187
PS-250
SRA-21T-4
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4
3
2
1
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FPS-187
Bias
SMP-05V-NC/SMR-05V-N
B6B-PH-K-S
DSW-L
DSW-L
GND2
F-GND
/TCB-PWM
SRA-21T-4
TB PWB
SRA-21T-4
/TCBIAS
AR-M550/M620  DETAILS OF EACH SECTION  6 - 50
Code
Signal 
name
Name
Function/Operation
Type
Model
Note
AINPD
AINPD
Duplex (ADU) paper entry 
detector
Duplex (ADU) paper entry 
detection, detection of paper exit 
to finisher
Transmission 
type
Paper transport system 
sensor
APPD1
APPD1
Duplex (ADU) paper pass 
detector 1
Duplex (ADU) upstream paper 
pass detection
Transmission 
type
Paper transport system 
sensor
APPD2
APPD2
Duplex (ADU) paper pass 
detector 2
Duplex (ADU) midstream paper 
pass detection
Transmission 
type
Paper transport system 
sensor
DSW-ADU
DSW-ADU
Duplex (ADU) cover open/close 
detector
Duplex (ADU) cover open/close 
detection
Transmission 
type
Door switch
PFD2
PFD2
Paper pass detector 2
Paper pass detection from 
duplex (ADU)/LCC/Desk section
Transmission 
type
Paper transport system 
sensor
THPS2
THPS2
Transfer belt contact/
separation home position 
sensor 2
Transfer belt separation home 
position detection 2
Transmission 
type
Other sensors, switch
ADM1
ADM1
Duplex (ADU) motor 1
Drives the paper exit rollers 2 
and the paper transport roller 18.
Stepping motor
Selection of Normal speed/ 
High speed
ADM2
ADM2
Duplex (ADU) motor 2
Drives the paper transport roller 
20 and 21.
Stepping motor
Selection of Normal speed/ 
High speed
TURM
TURM
Transfer separation motor
Drives and separates the 
transfer belt. 
DC brush motor
The transfer belt is pressed 
on the OPC drum only 
during printing. 
DGS
DGS
Paper exit gate solenoid
Drives the paper exit gate. 
Electromagnetic 
solenoid
DSW-L
DSW-L
Left door open/close detector
Left door open/close detection
Micro switch
Door switch
No.
Name
Function
1
Transport roller 21 (Drive)
Transports paper from the transport roller 20 to the transport roller 15.
2
Transport roller 20 (Drive)
Transports paper from the transport roller 19 to the transport roller 21.
3
Transport roller 19 (Drive)
Transports paper from the transport roller 2 to the transport roller 20.
4
Paper exit roller 1
Discharges paper. / Transports paper to the duplex (ADU) section.
AR-M550/M620  DETAILS OF EACH SECTION  6 - 51
C. Operational descriptions
(1) Paper transport operation in duplex print
a. Switchback operation and transport to the reverse section
1) The paper transported from the fusing section is sent to the paper
exit roller 1 (which is driven by the paper exit motor 2 (POM2)) with
the transport roller 16 (which is driven by the paper exit motor 1
(POM1)).
At this time, paper is passed under the paper exit guide. After
paper passing, the paper exit gate guide falls down by its own
weight.
2) When the specified time has passed from detection of the paper
lead edge by POD1 (paper exit detection from fusing), POM2
rotates in the normal direction, then rotates in the reverse direction
in the specified time. (The rotation time differs depending on the
paper size.)
3) When POM2 rotates reversely, paper is transported to the reverse
section. 
At that time, paper is passed over the paper exit gate guide which
fell down by it own weight.
4) When the specified time has passed from reverse rotation of
POM2, DGS (paper exit guide) turns on for a certain time and
paper is sent to the reverse section.
5) POM2 stops after passing the specified time from detection the
paper lead edge by AINPD (duplex paper entry detection). It rota-
tion is changed from reverse direction to normal direction to trans-
port the next paper.
b. Paper transport speed in duplex print
The transport speed in duplex print is changed to the high speed
(800mm/sec) to increase the job speed in some positions of paper. 
The transport speed is changed to the high speed in the Following
positions:
1) From when the paper rear edge passes the fusing section to when
switchback operation is started.
2) From when switchback operation is started to when a certain
amount of paper is transported after passing APPD1 (Paper pass
detection sensor in upstream of duplex).
3) After that, paper is stopped at the duplex paper feed position and
fed to the machine again. (The paper feed speed to the machine is
335mm/sec.)
POM2
POM1
POD1
POM2
POM1
POM2
DGS
ADM1
APPD1
AINPD
POD2
POD1
ADUM2
ADUM1
DGS
POM2
POM1
RRC
APPD2
37mS
50mS
168mS
102mS
25mS
439mS
120mS
485mS
572mS
166mS
AR-M550/M620  DETAILS OF EACH SECTION  6 - 52
D. Maintenance and parts replacement
(1) Maintenance and parts replacement
(List of Replacement Parts)
a. Left door unit
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
Duplex
1
Transport rollers
✕
❍
❍
❍
❍
❍
❍
❍
❍
2
Transport paper guides
❍
❍
❍
❍
❍
❍
❍
❍
❍
2
1
1
1
1
No.
Unit
Parts
a
Left door unit
1
ADU opening/closing door 
2
Paper exit roller 2
✕❍
3
Transport roller 19
✕❍
4
Transport roller 20
✕❍
5
Transport roller 21
✕❍
6
Duplex motor 1
7
Duplex motor 2
8
Paper exit gate solenoid
9
Duplex paper entry detector
10
Duplex paper pass detector 1
11
Left door transport paper guide 
R unit 
12
Duplex paper pass detector 2
13
Paper pass detector 2
14
Transfer high voltage 
transformer
15
Transfer separation motor
16
Transfer belt separation home 
position sensor
17
Switchback gate
18
Paper exit gate
19
Left door open/close detector
20
Duplex cover open/close 
detector
a-1
a-2
a-20
a
a-3
a-4
a-5
a-6
a-7
a-8
a-9
a-10
a-11
a-13
a-14
a-15
a-16
a-18
a-17
a-19
a-12
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