Service manual

AR-M351U/M451U, AR-M355U/M455U ELECTRICAL SECTION 13 - 21
RXD_DSK Serial I/F data (DESK) Serial I/F data (DESK-
PCU PWB)
——11 14 PCU
RXD_FIN1 Serial I/F data
(FINISHER)
Serial I/F data
(FINISHER-PCU PWB)
——11 2 PCU
RXD_FIN2 Serial I/F data
(FINISHER)
Serial I/F data
(FINISHER-PCU PWB)
——11 8 PCU
RXD_PCU Serial communication
send data signal
Send data to the controller ——221PCU
TCS Toner concentration
detection signal
Toner concentration
detection
——87PCU
TH-DV Developing temperature
sensor
Temperature detection
around the developing unit
——84PCU
THVin N.C. N.C. ——15 14
TMA Toner motor control signal Toner motor ON/OFF
control
——71PCU
TMB Toner motor control signal Toner motor ON/OFF
control
——72PCU
TXD_DSK Serial I/F data (DESK) Serial I/F data (PCU PWB-
DESK)
——11 13 PCU
TXD_FIN1 Serial I/F data
(FINISHER)
Serial I/F data (PCU PWB
- FINISHER)
——11 1 PCU
TXD_FIN2 Serial I/F data
(FINISHER)
Serial I/F data (PCU PWB
- FINISHER)
——11 7 PCU
TXD_PCU Serial communication
receive data signal
Receive data from the
controller
——223PCU
VIDEO Image signal Image signal to the LSU ——16 13 PCU
VIDEOin- Image signal Image signal from the
controller to the PCU PWB
——29PCU
VIDEOin+ Image signal Image signal from the
controller to the PCU PWB
——210PCU
VRB Laser power control signal Laser power control ——16 9 PCU
XADM_H/L ADU motor current control
signal
ADU motor current control ——12 25 PCU
XADMCK1 ADU upper transport
motor clock signal
ADU upper transport
motor rotation speed
control
——12 8 PCU
XADMCK2 ADU lower transport
motor clock signal
ADU lower transport
motor rotation speed
control
——12 10 PCU
XADMEN1 ADU upper transport
motor control signal
ADU upper transport
motor ON/OFF control
ON OFF 12 7 PCU
XADMEN2 ADU lower transport
motor control signal
ADU lower transport
motor ON/OFF control
ON OFF 12 9 PCU
XADUFM ADU cooling fan control
signal
Cooling fan control ON OFF 12 26 PCU
XCFM1_PWM Suction fan control signal Suction fan control Max. air flow OFF 13 21 PCU
XCFM2PWM Ozone exhaust fan control
signal
Ozone exhaust fan control OFF ON 4
4
15
20
PCU
XCPFC Paper cassette paper feed
clutch control signal
Paper feed clutch control Paper
transport
— 13 4 PCU
XDGS ADU gate solenoid control
signal
Gate select in duplex or
paper exit
Duplex Single 12 13 PCU
XDHVPWM Separation high voltage
output control signal
Separation high voltage
PWM control
——15 7 PCU
XDHVREM Separation high voltage
control signal
Separation high voltage
ON/OFF control
ON OFF 15 4 PCU
XDM OPC drum motor control
signal (ON/OFF)
OPC drum motor ON/OFF ON OFF 6 5 PCU
XDSR_DSK Serial communication
control signal
Receive control ——11 16 PCU
XDSR_FIN1 Serial communication
control signal
Receive control ——11 4 PCU
XDSR_FIN2 Serial communication
control signal
Receive control ——11 10 PCU
XDTR_DSK Serial communication
control signal
Send control ——11 15 PCU
Signal name Name Function/Operation
Connector level
Connector
No.
Pin
NO.
PWB
name
Remark
LH