Read Sharp MX-1800N (serv.man24) Service Manual online
MX-1800N MANUAL PAPER FEED SECTION D – 1
MX-1800N
Service Manual
[D] MANUAL PAPER FEED SECTION
1. Electrical and mechanism relation diagram
CN3(1/2)
S32B-PHDSS-B
5VN
20
MPWD
13
MPLD2
5VLED12
MPLD
16
18
19
5VLED13
MTOP2
5VLED9
25
MTOP1
D-GND
31
28
5VN
29
14
14
27
24
MTOP1
6
22
14
13
1
TH_M
5VLED9
5
2
D-GND
7
HUD_M
10
12
3
5VLED13
9
11
5VN
4
8
7
MTOP2
8
9
1
MPLD2
14
5
5VN
4
5VLED12
11
10
6
MPWD
3
MPLD
12
RIGHT
DOOR I/F
PWB
TH_M
HUD_M
DF11-8DP-SP1
8
6
7
2
4
5
3
1
D-GND
D-GND
D-GND
D-GND
D-GND
D-GND
D-GND
D-GND
CN26
P
QR/P4 32PIN
S
B32B-PHDSS-B
PHNR-2-H + BU02P-TR-P-H
DF11-6DP-SP1
PHNR-8-H + BU08P-TR-P-Ha
PHNR-14-H + BU14P-TR-P-H
PHNR-9-H + BU09P-TR-P-H
CN3(2/2)
PHNR-5-H + BU05P-TR-P-H
DF11-6DP-SP2
24V3
31
/MPUC
15
13
/MPGS
1
2
4
3
5
6
31
14
30
28
4
/MPFS
3
24V3
HPDET
5VLED7
7
8
9
9
D-GND
/MPUC
5
15
14
30
/MPGS
6
28
13
13
/MPFS
24V3
24V3
8
1
MPFD
3
24V3
2
/MPGS
5VLED7
4
3
3
/MPGS
MPFD
1
24V3
4
5
2
5
D-GND
2
6
7
/MPFS
2
4
24V3
1
1
6
HPDET
3
5
D-GND
4
5VLED7
5
10
MPFD
8
6
4
2
5
3
1
7
D-GND
D-GND
D-GND
5VLED7
5VLED7
5VLED7
24V3
24V3
24V3
24V3
24V3
24V3
4
6
5
1
D-GND
5
8
9
D-GND
7
5VLED12
4
MPWD
3
2
2
5VN
MPLD
6
3
5VLED12
1
MPLD
2
D-GND
3
2
2
5VN
1
MPWD
D-GND
3
MTOP2
D-GND
5VLED13
1
2
2
TH_M
1
2
3
4
3
4
5VN
HUD_M
D-GND
1
2
3
2
3
MTOP1
D-GND
5VLED9
5VLED7
MPFD
D-GND
3
1
2
RS
M
2
P
P
12
4
V
3
1
2/
M
P
G
S
2
P
SM2P
R
2
1
2
24V3
/MPFS
1
/MPUC
2
2
1
24V3
1
5VLED7
D-GND
HPDET
1
2
3
3
CN17
B7P-PH-K-S
R
SM18P
P
B32B-PHDSS-B
CN9
3
INT24V2
B3P-PH-K-S
P-GND
8
/CLUM2
/CPUC1
6
/CLUM1
14
15
15
/CLUM2
16
9
24V3
12
24V3
11
/CPFC
10
2
CPFM_LD
8
24V3
8
5
7
/CPFC
7
P-GND
4
/CPFM_CK
/CPFM_D
5
3
/CPFM_CK
3
4
/CPFM_D
4
5
CPFM_LD
9
/CPUC1
9
24V3
10
10
P-GND
/CLUM1
P-GND
14
15
15
16
7
P-GND
13
14
13
11
/CPUC2
24V3
/CPUC2
11
24V3
12
1
INT24V2
1
1
2
P-GND
2
12
13
1
2
3
4
5
6
7
INT24V2
P-GND
FG-OUT
/CPFM_CK
/CPFM_D
CPFM_LD
5V
PCU PWB
AC PWB
CN1
B6B-PH-K-S
6
1
3
4
PSFMB/
PSFMB//
2
PSFMA/
INT24V1
INT24V1
5
INT24V1
PSFMA//
INT24V1
5
PSFMB//
3
PSFMB/
6
PSFMA/
4
1
INT24V1
2
PSFMA//
DRIVER
MAIN PWB
MPLD
MPWD
MTOP2
MTOP1
TH_D/HUD_M
MPED
3
MPFD
MPFS
MPGS
CPFM
MPUC
PFM
2
1
4
5
MX-1800N MANUAL PAPER FEED SECTION D – 2
2. Operational descriptions
The paper pickup roller moves up and down to press paper and
separates the top paper, which is fed to the paper feed roller.
The paper feed roller feeds paper to the paper transport section,
and the separation roller prevents double feed.. ON/OFF control of
the pickup roller and the paper feed roller is made by the manual
paper feed clutch. Paper is transported to the resist roller by the
manual paper transport roller.
separates the top paper, which is fed to the paper feed roller.
The paper feed roller feeds paper to the paper transport section,
and the separation roller prevents double feed.. ON/OFF control of
the pickup roller and the paper feed roller is made by the manual
paper feed clutch. Paper is transported to the resist roller by the
manual paper transport roller.
3. Disassembly and assembly
A. Manual paper feed section
Signal name
Name
Function/Operation
CPFM
Paper feed motor
Paper feed section drive
MPED
Manual feed paper empty detection
Manual paper feed tray paper empty detection
MPFD
Manual feed paper entry detection
Manual paper feed tray paper empty detection
MPDS
Paper pickup solenoid
Paper pickup solenoid (Manual paper feed)
MPGS
Manual paper feed gate solenoid
Controls the manual paper feed gate solenoid Open/Close.
MPLD
Manual feed paper length detector
Manual paper feed tray paper length detection
MPUC
Manual paper feed clutch
Controls the manual paper feed section paper feed roller ON/OFF.
MPWD
Manual paper feed tray paper width detector
Manual paper feed tray paper width detection
MTOP1
Manual paper feed tray pull-out position detector 1
Manual paper feed tray paper pull-out position detection (storage position)
MTOP2
Manual paper feed tray pull-out position detector 2
Manual paper feed tray paper pull-out position detection (pulling-out position)
PFM
Transport motor
Transport drive between the resist roller and the paper feed section. Transport drive
between the resist roller and the right door section.
between the resist roller and the right door section.
TH_M/HUD_M
Temperature/humidity detection
Detects temperature/humidity.
No.
Name
Function/Operation
1
Paper feed roller (Manual paper feed tray)
Feeds paper to the paper transport section.
2
Separation roller (Manual paper feed tray)
Separates paper to prevent Double Feed.
3
Paper pickup roller (Manual paper feed tray)
Feeds paper to the paper feed roller.
4
Torque limiter
A certain level of resistance force is supplied to the rotation of the separation roller to
prevent double feed.
prevent double feed.
5
Transport roller 12 (Drive)
Transports paper transported from the transport roller 11 to the transport roller 8.
Transports paper fed from the manual feed tray to the transport roller 8.
Transports paper fed from the manual feed tray to the transport roller 8.
Unit
Parts
Maintenance
(1)
Manual
paper feed
tray unit
paper feed
tray unit
a
Temperature/humidity sensors
b
Manual paper feed tray pull-out
position detector 1
position detector 1
c
Manual paper feed tray pull-out
position detector 2
position detector 2
d
Manual paper feed tray paper
width detector
width detector
e
Manual feed paper length
detector
detector
(2)
Manual
paper feed
unit
paper feed
unit
a
Paper pickup roller
{
b
Paper feed roller
{
c
Separation roller
{
d
Manual paper feed gate
solenoid
solenoid
e
Transport roller 12 (Drive)
f
Manual feed paper entry
detection
detection
g
Torque limiter
h
Manual feed paper empty
detection
detection
i
Paper pickup solenoid
(1)
(2)-a
(1)-a
(2)-b
(1)-b
(1)-c
(2)-c
(1)-d
(2)-d
(1)-e
(2)-e
(2)-f
(2)-i
(2)
(2)-g
(2)-h
MX-1800N MANUAL PAPER FEED SECTION D – 3
(1) Manual paper feed tray unit
1) Open the right door unit.
2) Remove the screws, and remove the connector cover.
Remove the screws, then remove the ADU inner cover.
3) Remove the ADU cabinet F and the ADU cabinet R.
4) Remove the MF harness cover and disconnect the connector.
5)
Remove the MF tray installing shaft, and remove the manual
paper feed tray unit.
paper feed tray unit.
a. Temperature/humidity sensors /
b. Manual paper feed tray pull-out position detector 1 /
c. Manual paper feed tray pull-out position detector 2 /
d. Manual paper feed tray paper width detector
1)
1)
Remove the manual paper feed tray unit.
2)
Remove the MF tray upper inside cover.
3)
Disengage the pawl. Lift the MF tray upper and the MF tray 2,
and disconnect the connector.
and disconnect the connector.
4)
Temperature/humidity sensor (A), manual paper feed tray pull-
out position detector 1 (B), manual paper feed tray pull-out
position detector 2 (C)
out position detector 1 (B), manual paper feed tray pull-out
position detector 2 (C)
1
2
1
2
1
3
2
A
B
C
MX-1800N MANUAL PAPER FEED SECTION D – 4
5) Manual paper feed tray paper width detector
e. Manual feed paper length detector
1) Remove the manual paper feed tray unit.
2) Remove the MF tray 2.
3) Remove the MF tray 2 lower.
1) Remove the manual paper feed tray unit.
2) Remove the MF tray 2.
3) Remove the MF tray 2 lower.
4) Manual feed paper length detector
(2) Manual paper feed unit
1) Open the right door unit.
2) Remove the manual paper feed tray unit.
3) Disconnect the connector, and remove the manual paper feed
2) Remove the manual paper feed tray unit.
3) Disconnect the connector, and remove the manual paper feed
unit.
a. Paper pickup roller /
b. Paper feed roller
1)
1)
Remove the MF pickup cover.
2)
Remove the paper pickup roller (A) and the paper feed roller
(B).
(B).
c. Separation roller
1)
1)
Remove the MF pickup cover.
2)
Remove the paper pickup roller and the paper feed roller.
3)
Open the MF lower maintenance cover, remove the separation
roller.
roller.
A
B
1
2