Sharp MX-DE25 / MX-26 / MX-27 (serv.man2) Service Manual ▷ View online
MX-DE27 MAINTENANCE 3 – 11
3)
Remove the paper roller holder.
4)
Remove the paper pickup roller and the paper feed roller.
5)
Remove the separation roller.
6)
Remove the torque limiter.
b. Vertical transport roller 1, vertical transport roller 2
1)
Remove the paper feed tray.
2)
Remove the tray paper feed unit.
3)
Clean the vertical transport roller 1 or the vertical transport
roller 2.
roller 2.
c. Transport roller 1, transport roller 3, transport roller 5
1)
Remove the paper feed tray.
2)
Remove the tray paper feed unit.
3)
Remove the E-ring and the bearing. Remove the paper feed
lower PG unit.
lower PG unit.
Ĭ
Ĭ
ĭ
Ĭ
ĭ
MX-DE27 ELECTRICAL SECTION 4 – 1
MX-DE27
Service Manual
[4] ELECTRICAL SECTION
1. Block diagram
A
A
B
B
C
C
D
D
E
E
4
4
3
3
2
2
1
1
CAN
CAL
L
CA
L
CA
N
CA
N
CA
/R
xC
L_
D
C
/xTC
L_
D
C
/
CL
_
RS
DC
/T
CL
_
C
RC
/DT
CL
_
R
C
CL
_S
E
R
C
+
42V
+5
V
+5
V
+42V
1/2
MX-DE25/26/27
C2SS3
C2SS4
C2SS2
C2SSSET_D
C2SS1
C2PFC
㼂
㻠
㻞
㻗
C2PUC
㼂
㻠
㻞
㻗
C2LUM
㼂
㻠
㻞
㻗
2CS size detection PWB UN
㻰
㻺
㻳
C2SPD
㼂
㻡
㻗
㼂
㻡
㻗
DSW_C2
㼂
㻡
㻗
C2PFD
㼂
㻡
㻗
C2PED
㼂
㻡
㻗
C2LUD
㻟
WH-CS2 Dehumidifying heater (Upper)
Paper feed tray 2 transport clutch
Paper feed tray 2 paper feed clutch
Paper feed tray 2 lift-up motor
Paper feed tray 2 paper level detector
Paper feed tray 2 attachment detection detector
Paper feed tray 2 paper rear edge detector 1
Paper feed tray 2 paper rear edge detector 2
Paper feed tray 2 paper rear edge detector 3
Paper feed tray 2 paper rear edge detector 4
Paper feed tray 2 open/close detection detector
Paper feed tray 2 paper transport detector
Paper feed tray 2 paper empty detector
Paper feed tray 2 upper limit detector
Main unit
㻯
㻯
㻸
㻞
3AF
ETY
ROUNDING
3AF
ETY
ROUNDING
MX-DE27 ELECTRICAL SECTION 4 – 2
A
A
B
B
C
C
D
D
E
E
4
4
3
3
2
2
1
1
/PDF
M-
L
C
K
/
P
DF
M
-E
N
P
DF
M-
T
/DT
S
D_
RK
/R
x
S
D_
DK
S
D_
SE
RK
/TS
D_
C
RK
/S
D_
RS
D
K
/xTS
D_
DK
CA
N
CAL
CA
N
CA
L
+5
V
+42
V
2/2
㼥㼘
㼚
㻻㻌
㻣㻞
㻛㻢
㻞
㻱
㻰㻙
㼄
㻹
㻹㼍㼕㼚㻌㼡㼚㼕㼠
㻹
㻲
㻼
㻰
㼂
㻠
㻞
㻗
Desk paper feed motor
㻮
㼃
㻼㻌
㻸
㻻
㻾
㼀
㻺
㻻
㻯㻌
㻷
㻿
㻱
㻰
㻟
㻰
㻱
㻾
㻼
㻝
㻰
㻠
㻰
㻱
㻾
㻼
㻝
㻰
㻞
㻰
㻱
㻾
㻼
㻝
㻰
㻯
㻰
㻹
㻝
㻰
㻝
㻰
㻱
㻾
㻼
㻝
㻰
㼁
㻼
㻯
㻕
㼁
㻭㻙
㻭㻢
㻝
㻶㻜
㻞
㻰
㻹
㻭
㻿
㼀
㻭㻔
㻯
㻾
㼀
㻼
㻰
㼂
㻠
㻞
㻗
㻯
㻲
㻼
㻝
㻰
㼂
㻠
㻞
㻗
㼂
㻠
㻞
㻗
㻯
㻲
㻼
㻞
㻰
㻹
㻸
㻝
㻰
㼂
㻠
㻞
㻗
㼂
㻠
㻞
㻗
㻹
㻸
㻞
㻰
3CS size detection PWB UN
㻰
㻺
㻳
㻟
㻰
㻱
㻾
㻼
㻞
㻰
㻠
㻰
㻱
㻾
㻼
㻞
㻰
㻞
㻰
㻱
㻾
㻼
㻞
㻰
㻯
㻰
㻹
㻞
㻰
㻝
㻰
㻱
㻾
㻼
㻞
㻰
㻰
㻺
㻳
㻰
㻽
㻼
㻝
㻰
㼂
㻡
㻗
㻰
㻽
㻼
㻞
㻰
㼂
㻡
㻗
㼂
㻡
㻗
㻰
㻼
㻼
㻝
㻰
㼂
㻡
㻗
㻰
㻱
㻼
㻝
㻰
㼂
㻡
㻗
㻰
㻸
㼁
㻝
㻰
㻰
㻼
㻼
㻞
㻰
㼂
㻡
㻗
㻰
㻱
㻼
㻞
㻰
㼂
㻡
㻗
㻰
㻸
㼁
㻞
㻰
㼂
㻡
㻗
㻟
㻕㼦
㻴
㻹㻤
㻤㻞㻚
㻞㻝
㻔㼘
㼍㼠
㼄
On board writing circuit
Output buffer
㻷
㻿
㻰㻙
㻴
㼃
Warm heater(Lower)
Desk paper transport clutch
Paper feed tray 3 paper feed clutch
Paper feed tray 2 transport clutch
Paper feed tray 3 lift-up motor
Paper feed tray 3 paper quantity detector
Paper feed tray 3 mount detect connector
Paper feed tray 3 paper rear edge detector 1
Paper feed tray 3 paper rear edge detector 2
Paper feed tray 3 paper rear edge detector 3
Paper feed tray 3 paper rear edge detector 4
Paper feed tray 3 paper pass detector
Paper feed tray 3 paper empty detector
Paper feed tray 3 upper limit detector
Paper feed tray 4 paper pass detector
Paper feed tray 4 paper empty detector
Paper feed tray 4 upper limit detector
Paper feed tray 4 lift-up motor
㻞
㻷
㻿
㻰㻙
㻴
㼃
4CS size detection PWB UN
Paper feed tray 4 mount detect connector
Paper feed tray 4 paper rear edge detector 1
Paper feed tray 4 paper rear edge detector 2
Paper feed tray 4 paper rear edge detector 3
Paper feed tray 4 paper rear edge detector 4
Paper feed tray 4 paper quantity detector
Transistor array
㻕
㻳
㼃
㻲
㻭㻟
㻜㻜
㻞
㻺
㻸
㼁㻔
Output buffer
Input buffer
Input buffer
Input buffer
Input buffer
Warm heater(Lower)
Output buffer
Sensor input circuit
Lift motor drive circuit
Lift motor drive circuit
3AF
ETY
ROUNDING
MX-DE27 ELECTRICAL SECTION 4 – 3
2. Actual wiring diagram
A. MX-DE25
A
A
B
B
C
C
D
D
E
E
E
E
D
D
C
C
B
B
A
A
1/1
㻿㻙
㼂㻞
㻜㻙
㻾
㻴
㼆
㻯
㻝㻝
㻞
㻝
㻠
㻢
㻟
㻡
㻤
㻥
㻣
㻜㻝
㻯
㻺㻙
㼂㻝
㻝㻙
㻼
㻹
㻿
㻞
㻯
㼁
㻼
㻯
㻟
㼂㻠
㻞
㻿㻙
㼂㻞
㻜㻙
㻾
㻴
㼆
㻯
㻟
㼂㻠
㻞
㻝
㻞
㻞
㻯
㻲
㻼
㻯
㻟
㼂㻠
㻞
㻰
㻺
㻳
㻰
㻺
㻳
㻞
㻟
㻰
㻺
㻳
㻰
㻺
㻳
㻡
㻠
㻯㻞
㻙
㻿
㻰㻢
㻙㻝
㻝
㻲
㻰
㻕㻡
㻜㻔
㻝
㻼
㻿㻙
㻼
㻰㻢
㻙㻝
㻝
㻲
㻰㻗
㻢
㻝
㻰
㻺
㻳
㻰
㻺
㻳
㻰
㻺
㻳
㻏㻞
㻹
㼁
㻸
㻯
㻰
㻺
㻳
㻝
㻞
㻰
㻼
㻲
㻼
㻯㻛
㻾㻗
㻺
㼂㻡
㻞
㻰
㼁
㻸
㻯㻛
㻾㻗
㻺
㼂㻡
㻞
㻰
㻲
㻼
㻯㻛
㻞
㻰
㻱
㻼
㻯㻛
㻰
㻺
㻳
㻟
㼂㻠
㻞
㻾㻗
㻺
㼂㻡
㻞
㻿
㼁
㻼
㻯㻛
㻞
㻯㼋
㼃
㻿
㻰㻛
㻣
㻝
㻙
㻺
㻯
㻾㻗
㻺
㼂㻡
㻝㻞
㻿
㻿
㻯㻛
㻡
㻟
㻣
㻥
㻣㻝
㻝㻝 㻟㻝 㻡㻝
㻥㻝
㻟㻞
㻝㻞
㻡㻞
㻿
㼂㻙
㻞㻝
㻙
㻼
㻭
㻼
㻯
㻯
㻸㼋
㻰
㼄
㼀
㻞㻞
㻿
㻿
㻯㻛
㻺
㼂㻡
㻯
㻯
㻸㼋
㻾
㼀
㻰㻛
㻰
㻺
㻳
㻯
㻯
㻸㼋
㻾
㻿
㻰㻛
㻯
㻯
㻸㼋
㻿
㻱
㻾
㻯㻚
㻺
㻯
㻯
㻸㼋
㻰
㼄
㻾
㻢
㻣
㻟
㻝
㻠
㻜㻝
㻡
㻟㻞
㻿
㻿
㻯㻛
㻭
㻙
㻺
㻯
㻠㻞
㻿
㻿
㻯㻛
㻞
㻰
㻼
㻿
㻯㻛
㻰㼋
㼀
㻱
㻿㻞
㻿
㻿
㻯㻛
㼂㻠
㻜㻙
㻼
㻸
㻱
㻹㼋
㼀
㻱
㻿㻞
㻿
㻿
㻯㻛
㻢
㻡
㻠
㻞㻝
㻡㻝
㻠㻝
㻝㻝
㻡㻝
㻜㻝
㼅㻙
㼂㻣
㻝㻙
㻾
㻴
㼆
㻯
㻥
㻣㻝
㻟㻝
㻢㻝
㻟㻝
㻝㻝
㻠㻝
㻯㻞㻼㼁㻯
㻞㻝
㻣
㻤
㻡
㻢
㻥
㻤
㻜㻝
㻣
㻝
㻞
㻠
㻟
㻿㻙
㼆
㼀㻙
㻼㻣
㻝
㼁
㻮
㻞
㻯
㼁
㻼
㻯
㻟
㼂㻠
㻞
㻢㻝 㻣㻝
㻟
㻞
㻝
㻣㻞
㻞
㻝
㻞
㻞
㻯
㻲
㻼
㻯
㻞
㻯㻞㻼㻲㻯
㻠
㻢
㻤
㻝
㻜㻝
㻝
㻞㻝
㻯
㻯
㻸㻙
㻴
㼃
㻞㻙
㻾
㻴
㻼
㻞
㻰
㻺
㻳
㻯㻞㻸㼁㻹㻏
㼀㻵
㻺
㼁㻌
㻼
㼁㻌
㼀
㻲㻵
㻸
㻝
㻠㻝
㻏㻞
㻹
㼁
㻸
㻯
㻞
㻢㻝 㻤㻝 㻜㻞 㻞㻞
㻢㻙
㻾
㻴
㻼
㻟㻙
㻤㻞
㻞㻥
㻣㻝
㻟
㻯㻞㻿㻼㻰
㻞
㻰
㻼
㻿
㻯㻛 㻺㻳㻰
㻞
㻝
㻯㻞㻿㻿㻌㻼㼃㻮
㻠㻞
㻠㻞
㻿
㻿
㻯㻛
㻠
㻞㻞
㻿
㻿
㻯㻛
㻟
㻟㻞
㻿
㻿
㻯㻛
㻰
㻺
㻳
㻢
㻡
㻝
㻞
㻝㻞
㻿
㻿
㻯㻛
㻰㼋
㼀
㻱
㻿㻞
㻿
㻿
㻯㻛
㻢㻞 㻤㻞
㻰
㻺
㻳
㻰
㻺
㻳
㻟
㻞
㻯㻞
㻙
㻿
㻰㻠
㻙㻝
㻝
㻲
㻰
㻕㻡
㻜㻔
㻝
㻼
㻿㻙
㻼
㻰㻠
㻙㻝
㻝
㻲
㻰㻗
㻠
㻝
㻰
㻺
㻳
㻰
㻺
㻳
㻯
㻯
㻸㼋
㻰㼤
㼀
㻯
㻯
㻸㼋
㻰㼤
㻾
㻯
㻯
㻸㼋
㻾
㼀
㻰㻛
㻯
㻯
㻸㼋
㻾
㻿
㻰
㻰
㻺
㻳㻙
㻲
㻯
㻯
㻸㼋
㻿
㻱
㻾
㻺
㼂㻡
㻰
㻺
㻳
㻕
㻼
㻻㻔
㻠
㼂㻠
㻞
㻕
㻼
㻻㻔
㻰
㻺
㻳
㻯
㻯
㻸㼋
㻯
㻾
㼀㻛
㻕
㻯㻚
㻺㻔
㻥㻟
㻜㻟 㻞㻟 㻠㻟 㻢㻟 㻤㻟 㻜㻠 㻥㻞 㻝㻟 㻟㻟 㻡㻟 㻣㻟
㻟
㻞
㻝
㻞
㻟
㻝
㻕
㻰
㻱
㻾㻔
㼂㻟
㻜㻙
㻼
㻸
㻱
㼂㻟
㻜㻙
㻼
㻸
㻱
㻝
㼂㻠
㻜㻙
㻾
㻸
㻱
㻠
㼂㻟
㻜㻙
㻾
㻸
㻱
㻸㻌
㻯
㻭
㻺㻌
㻯
㻭
㻞
㻞
㻝
㼂㻞
㻜㻙
㻼
㻸
㻱
㼂㻞
㻜㻙
㻾
㻸
㻱
㻝
㻙㻙
㻙
㼂㻜
㻜㻝
㻕
㻰
㻱
㻾㻔
㼂㻞
㻜㻙
㻾
㻸
㻱
㻕
㻰
㻱
㻾㻔
㼂㻞
㻜㻙
㻼
㻸
㻱
㻙㻙
㻙
㼂㻜
㻜㻞
㻞
㻿
㻯㻙
㻴
㼃
㻾㻗
㻺
㼂㻡
㻾㻗
㻺
㼂㻡
㻺
㼂㻡
㻿㻙
㼂㻜
㻠㻙
㻼
㻰
㼁
㻼
㻝㻝
㻞
㻝
㻠
㻢
㻟
㻡
㻤
㻥
㻣
㻜㻝
㻺㻙
㼂㻝
㻝㻙
㻾
㻹
㻿
㻞
㻟
㻠
㻞
㻟
㻝
㻙㻙
㻙
㼂㻜
㻜㻞
㻙㻙
㻙
㼂㻜
㻜㻝
㻞
㻞
㻝㻝
㻿
㻯㻞
㻾
㼑㼍
㼞
㼢㼕
㼑㼣
STAND/550 SHEET PAPER DRAWER(MX-DE25)
㻞㻜
㻙
㻾
㻸
㻱
㼂㼂
㻞㻜
㻙
㻼
㻸
㻱
㻙㻙
㻙
㼂㻜
㻜㻝
㻞㻝
㻰
㻺
㻳
㻕
㻼
㻻㻔
㻠
㼂㻠
㻞
㻕
㻼
㻻㻔
㻰
㻺
㻳
㻯
㻯
㻸㼋
㻯
㻾
㼀㻛
㻝㻝
㻤
㻞
㻥
㻠
㻝
㻞
㻟
㻠
㻙
㼂㻠
㻜㻙
㻾
㻹
㻿㻺
㻯
㻺㻙
㼂㻠
㻜㻙
㻼
㻹
㻿
㻝
㻞
㻟
㻙㻙
㻙
㼂㻜
㻜㻝
㻙㻙
㻙
㼂㻜
㻜㻞
㻞㻜
㻙
㻼
㻸
㻱㼂
㼂㻞
㻜㻙
㻾
㻸
㻱
㼂㻞
㻜㻙
㻼
㻸
㻱
㻙㻙
㻙
㼂㻜
㻜㻞
㼂㻠
㻜㻙
㻼
㻸
㻱
㻝
㼂㻠
㻜㻙
㻾
㻸
㻱
㻠
㼂㻞
㻜㻙
㻾
㻸
㻱
㻞
㻟
㻠
㻞
㻟
㻝
㻞
㻝
㻙㻙
㻙
㼂㻜
㻜㻝
㻞
㻝
㻞
㻝
㻰
㻱
㻾㻔
㼂㻞
㻜㻙
㻼
㻸
㻱㻕
㻕
㻰
㻱
㻾㻔
㼂㻞
㻜㻙
㻾
㻸
㻱
㻙㻙
㻙
㼂㻜
㻜㻞
㻯
㻯
㻸㻙
㻴
㼃
㻼㻙
㻴㻢
㻙
㻾
㼄㻟
㻜
㻕㻟
㻙㻤
㻞㻞
㻥㻣
㻝㻔
㻯㻞㻼㻲㻰
㻞
㻰
㻺
㻳
㻞
㻰
㻲
㻼
㻯㻛
㻝
㻺
㼂㻡
㻟
㻼㻙
㻴㻢
㻙
㻾
㼄㻟
㻜
㻕㻟
㻙㻤
㻞㻞
㻥㻣
㻝㻔
㻯㻞㻸㼁㻰
㻞
㻰
㼁
㻸
㻯㻛
㻾㻗
㻺
㼂㻡
㻞
㻰
㻺
㻳
㻟
㻝
㻼㻙
㻴㻢
㻙
㻾
㼄㻟
㻜
㻕㻟
㻙㻤
㻞㻞
㻥㻣
㻝㻔
㻝
㻞
㻞
㻰
㻱
㻼
㻯㻛
㻟
㻰
㻺
㻳
㻾㻗
㻺
㼂㻡
㻯㻞㻼㻱㻰
㼅㻢
㻙
㼆
㻯㻣
㻝
㻕
㼅㻙
㼂㻣
㻝㻙
㻾
㻴
㼆
㻯㻔
#33
NESS
3AF
ETY
ROUNDING
3AF
ETY
ROUNDING
&
OR
APAN
#7(07"
&OR
APAN
3AF
ETY
ROUNDING
3AF
ETY
ROUNDING
(EATER
3AF
ETY
ROUNDING
3AF
ETY
ROUNDING
(EATER
(EATER
Paper feed tray 2 paper level detector
Paper feed tray 2 paper rear edge detector
Paper feed tray 2 lift-up motor
Paper feed tray 2 paper feed clutch
Paper feed tray 2 transport clutch
Paper feed tray 2 paper empty detector
Paper feed tray 2 upper limit detector
Paper feed tray 2 paper transport detector
0
APER
EED
A
Y
EED
0
APER
EED
A
Y
NESS
$R
IV
E
Y
NESS
(EATER
NESS
(EATER
NESS
/04)/.!,
6
NESS
6
NESS
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