Sharp AR-M550N Circuit Diagram page 190

Signal name Name
MPFC Paper feed clutch control signal
(Manual feed)
MPFD1 Manual feed paper pass
detection signal 1
MPFD2 Manual feed paper pass
detection signal 2
MPFGS Manual feed gate solenoid
control signal
MPFPWS Manual feed paper width
detection signal
MPLD1 Manual feed paper length
detection signal 1
MPLD2 Manual feed paper length
detection signal 1
MPRD1 Paper feed tray 2 paper pass
detection signal 1
MPRD2 Paper feed tray 2 paper pass
detection signal 2
MSWMON MSW monitor signal
MSWOFF MSW OFF signal
MSWPR Main switch power relay control
signal
MTOP1 Manual tray pull-out position
detection signal 1
MTOP2 Manual tray pull-out position
detection signal 2
OCSW SPF open/close detection
signal
PAGE Page signal
PAGE1 Image effective area signal
(CCD)
PAGE2 Image effective area signal
(CIS)
PCS Image density sensor signal
PCS-LED Image density sensor LED
current control signal
PCU_DSR Serial communication control
signal
PCU_DTR Serial communication control
signal
PCU_RES PCU reset signal
PCU_RXD Serial communication send
data signal
PCU_TXD Serial communication receive
data signal
PD Document size detection signal OC document size detection
PDSEL0 Document detection select
signal 0
PDSEL1 Document detection select
signal 1
PDSEL2 Document detection select
signal 2
PFD2 Paper pass detection signal 2
PGMCLK LSU motor RPM control signal
(CLK)
PNC Count-up signal (Auditor)
Function/Operation
Manual feed tray paper feed
roller control
Manual tray paper pass
detection
Manual tray paper pass
detection
Manual feed gate control
Manual feed paper width
detection
Manual paper feed tray paper
length detection (Short)
Manual paper feed tray paper
length detection (Long)
Manual feed/paper feed tray 2
paper pass detection
Manual feed/paper feed tray 2
paper pass detection
Main switch monitor
Main switch OFF signal
Main switch power relay control
Manual paper feed tray pull-out
position detection (Storing
position)
Manual paper feed tray pull-out
position detection (Pull-out
position)
Document size detection
trigger
Print timing control for
controller (Output for every
page)
Indicates image data area of
one page. (CCD)
Indicates image data area of
one page. (CIS)
Detection of density of toner
patch on the OPC drum
Image density sensor LED light
emitting quantity control
Send control signal (Serial
communication)
Receive control signal (Serial
communication)
PCU reset by the controller
Send data to the controller
Receive data from the
controller
analog signal
Document size detection signal
select
Document size detection signal
select
Document size detection signal
select
Paper pass detection from
duplex (ADU)/LCC/Desk
section
LSU motor RPM control
Count up (Auditor)
AR-555/550/620/625 SIGNAL NAME LIST / 信号名リスト 7 - 6
Connector level
Connector
No.
"L" "H"
Paper feed — 13
— Paper pass 13
Paper pass — 18
Paper pass
Stopper 13
enable
— — 13
Paper
— 13
present
Paper
— 13
present
Paper pass — 12
Paper pass — 12
— — 19
— — 9
Relay ON Relay OFF 2
Store — 13
Pull out — 13
Close 3
— — 9
— — 1
— — 10
— — 8
— — 8
— — 9
— — 9
Operation
Reset 9
enable
— — 9
— — 9
— — 1
— — 1
— — 1
— — 1
Paper pass — 7
— — 22
Count UP 5
PWB
Pin No. Remark
name
PCU
20
PCU
21
PCU
6
PCU
17
PCU
16
PCU
6
PCU
10
PCU
23
PCU
29
23 PCU
5 PCU
PCU
15
PCU
12
PCU
14
SCN
3
PCU
14
SCN
68
SCN
12
PCU
3
PCU
1
PCU
13
PCU
10
PCU
7
PCU
17
PCU
9
SCN
74
SCN
72
SCN
21
SCN
22
PCU
10
PCU
6
1 SCN