Sharp AR-M550 (serv.man11) Service Manual ▷ View online
AR-M550/M620 DETAILS OF EACH SECTION 6 - 5
2. Paper feed, paper transport, duplex, and paper exit reverse sections
[Paper feed section]
General
The paper feed tray 1 holds 900 sheets, the paper feed tray 2 holds
1,300 sheets, the multi-purpose paper feed tray 3 holds 500 sheets,
the paper feed tray 4 holds 500 sheets, and the manual paper feed tray
holds 100 sheets. Those paper feed units are standard provisions.
1,300 sheets, the multi-purpose paper feed tray 3 holds 500 sheets,
the paper feed tray 4 holds 500 sheets, and the manual paper feed tray
holds 100 sheets. Those paper feed units are standard provisions.
AR-M550/M620 DETAILS OF EACH SECTION 6 - 6
(Manual paper feed section)
A. Major parts and signal functions
14
13
12
11
10
1
9
8
7
6
5
4
3
2
24
23
22
21
20
19
18
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16
15
25
26
27
28
29
30
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30
9
8
7
6
5
4
3
2
1
9
8
7
6
5
4
3
2
1
20
19
18
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15
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13
12
11
10
20
19
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11
10
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10
9
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5
4
3
2
1
25
26
26
9
8
7
6
5
4
3
2
1
7
9
8
8
6
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
2
1
3
2
1
3
2
1
3
2
1
2
1
2
1
3
2
1
1
2
2
2
1
1
2
2
3
2
1
2
1
1
3
3
2
2
PCU PWB
CN-17
M2LUM
GND2
+24V1
/T1PFC
+24V1
+24V1
/M2PFC
+24V1
/DSKPFC2
GND2
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)
DSW-F(R)
GND2
MPLD1
+5V2
MPLD2
MTOP1
MTOP2
GND2
MPFPWS
Vref
/MPFC
+24V1
+24V1
/MFPUS
GND2
MPED
+5V2
+24V1
/MPFGS
GND2
MPLD1
+5V2
MPLD2
MTOP1
MTOP2
GND2
MPFPWS
Vref
/MPFC
+24V1
+24V1
/MFPUS
GND2
MPED
+5V2
+24V1
/MPFGS
+5V-MPFD1
GND2
MPFD1
(NC)
DSW-R
MPFD1
(NC)
DSW-R
(NC)
(NC)
(NC)
(NC)
DSW-F(R)
DSW-R
GND2
+24V1
MPLD1
/MFPUS
+5V2
GND2
MPLD2
MPED
MTOP1
+5V2
MTOP2
+24V1
MPFPWS
/MPFGS
Vref
+5V-MPFD1
/MPFC
MPFD1
+24V1
GND2
GND2
+24V1
MPLD1
/MFPUS
+5V2
GND2
MPLD2
MPED
MTOP1
+5V2
MTOP2
+24V1
MPFPWS
/MPFGS
Vref
+5V-MPFD1
/MPFC
MPFD1
+24V1
GND2
GND2
B26B-PHDSS-B
CN-13
+24V1
SMR-02V-N/SMP-02V-NC
/MPFGS
GND2
GND2
+5V2
+5V2
GND2
DF3-3S-2C
DF3-3S-2C
179228-2
MPFPWS
MPLD1
MPLD2
MTOP1
GND2
GND2
MTOP2
GND2
GND2
GND2
+5V2
MPLD1
PHR-3
179228-2
DSW-R
MPLD2
MTOP1
MTOP2
GND2
MPFPWS
MTOP1
MTOP2
GND2
MPFPWS
PHNR-09-H+BU09P-TR-P-H
MPFD1
GND2
Vref
Vref
+24V1
+24V1
/MFPUS
/MFPUS
SMR-02V-N/SMP-02V-NC
GND2
+5V2
DF3-3S-2C
MPED
(NC)
PHNR-03-H+BU03P-TR-P-H
/MPFC
DRAWER
QR/P4-24S-C(01)/QR/P4-24P-C(01)
B30B-PHDSS-B
PHR-3
+5V-MPFD1
S5B-PH-K-S
GND2
+5V2
/MM
MMCLK
MM-T
+5V2
/MM
MMCLK
MM-T
MM
MPFD1
MPFGS
MPLD1
MPLD2
MTOP1
MTOP2
MPFPWS
MPFC
MFPUS
MPED
1 2 3
AR-M550/M620 DETAILS OF EACH SECTION 6 - 7
Code
Signal
name
Name
Function/Operation
Type
Model
Note
MPED
MPED
Manual feed paper empty
detector
detector
Manual paper feed tray paper empty
detection
detection
Transmission type
Manual paper feed unit
MPFD1
MPFD1
Manual feed paper pass
detector 1
detector 1
Manual tray paper pass detection
Transmission type
Paper transport system
sensor
sensor
MPFPWS MPFPWS Manual feed paper width
detector
Manual feed paper width detection
Volume resistor
Analog detector
MPLD1
MPLD1
Manual feed paper length
detector 1
detector 1
Manual paper feed tray paper length
detection (Paper feed side)
detection (Paper feed side)
Transmission type
Manual paper feed unit
MPLD2
MPLD2
Manual feed paper length
detector 2
detector 2
Manual paper feed tray paper length
detection (Outside)
detection (Outside)
Transmission type
Manual paper feed unit
MTOP1
MTOP1
Manual tray pull-out position
detector 1
detector 1
Manual paper feed tray pull-out position
detection (Storing position)
detection (Storing position)
Contact type
Manual paper feed unit
MTOP2
MTOP2
Manual tray pull-out position
detector 2
detector 2
Manual paper feed tray pull-out position
detection (Pull-out position)
detection (Pull-out position)
Contact type
Manual paper feed unit
DSW-R
DSW-R
Manual feed unit open/close
detector
detector
Manual paper feed unit open/close
detection, main charger power/
developing bias power line open/close
detection, main charger power/
developing bias power line open/close
Micro switch
MPFC
MPFC
Paper feed clutch (Manual
paper feed)
paper feed)
Manual paper feed section paper feed
roller ON/OFF control
roller ON/OFF control
Electromagnetic
clutch
clutch
MFPUS
MFPUS
Paper pickup solenoid
(Manual paper feed)
(Manual paper feed)
Presses the paper pickup roller onto
paper.
paper.
Electromagnetic
solenoid
solenoid
MPFGS
MPFGS
Manual paper feed gate
solenoid
solenoid
Manual feed gate solenoid open/close
control
control
Electromagnetic
solenoid
solenoid
No.
Name
Function
1
Separation roller (Manual paper feed tray)
Separates paper to prevent against double feed.
2
Paper feed roller (Manual paper feed tray)
Feeds paper to the paper transport section.
3
Paper pickup roller (Manual paper feed tray)
Sends paper to the paper feed roller.
4
Torque limiter
A fixed level of resistance is applied to the paper separation roller to prevent against double
feed.
feed.
AR-M550/M620 DETAILS OF EACH SECTION 6 - 8
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)
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
Multi manual
paper feed
paper feed
1
Pickup roller
✕
❍
❍
❍
❍
❍
❍
❍
❍
(Note 1)
2
Paper feed roller
✕
❍
❍
❍
❍
❍
❍
❍
❍
(Note 1)
3
Separation roller
✕
❍
❍
❍
❍
❍
❍
❍
❍
(Note 1)
4
Torque limiter
✕
✕
✕
✕
✕
✕
✕
✕
✕
(Note 1)
5
Shaft (Conduction grease)
✕
✩
✩
✩
✩
✩
✩
✩
✩
UKOG-0012QSZZ
(Note 1)
Replacement reference: For replacement, refer to each paper feed port counter value.
Manual paper feed : 100K or 1 year
Torque limiter
Torque limiter
: 800K (However, 400K for manual paper feed section)
3
2
1
4
5
5
5
5
No.
Unit
Parts
a
Multi manual paper
feed tray unit
feed tray unit
1
Manual paper feed unit open/
close switch
close switch
2
Manual feed empty detector
3
Pickup roller
✕❍
4
Paper feed roller
✕❍
5
Separation roller
✕❍
6
Torque limiter
✕
7
Manual feed gate solenoid
8
Manual feed paper pass
detector 1
detector 1
9
Paper feed clutch
10
Paper pickup solenoid
11
Manual feed paper width size
detection PWB
detection PWB
12
Manual feed paper length
detector 1
detector 1
13
Manual feed paper length
detector 2
detector 2
14
Manual tray pull-out position
detector 1
detector 1
15
Manual tray pull-out position
detector 2
detector 2
a-1
a-2
a-7
a-8
a-9
a-10
a-11
a-12
a-13
a-14
a-15
a-6
a
a-3
a-4
a-5
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