AR-555/550/620/625 SIGNAL NAME LIST / 信号名リスト 7 - 4
F2 Operation panel LED matrix
signal 2
Switching
——182
SCN
F3 Operation panel LED matrix
signal 3
Switching
——184
SCN
FBIAS Fusing bias output control
signal
Fusing bias output ON/OFF
control
ON OFF 7 23
PCU
FRDY FAX LED lighting signal LED lighting control in power
save mode, iFAX, FAX
nighttime mode
LED ON 9 14
SCN
FRM_CCD1 CCD image data effective area
signal (CCD)
CCD image data effective area
control (CCD)
——161
SCN
FRM_CCD2 CIS image data effective area
signal (CIS)
CIS image data effective area
control (CIS)
——10 10
SCN
FUM Fusing motor control signal Fusing motor ON/OFF ON OFF 6 13 PCU
FUMCLK Fusing motor rotating speed
control (CLK) signal
Fusing motor control CLK
——614
PCU
FUM-T Fusing motor lock detection
signal
Fusing motor lock detection
Rotation Stop/Lock 6 15
PCU
FW AC power source full wave
signal
Power monitor
——20 9
PCU
FW_SUB Sub power source full wave
signal
Sub power full wave signal
——14
PCU
FWP-PCU Flash write protect signal Flash write protect ——96PCU
GBPWM Making charger grid bias
voltage (PWM) control signal
Main charger grid bias voltage
(PWM) control
——15 5
PCU
HLCNT1 Upper fusing roller center
heater lamp control signal
Upper fusing roller center
heating control
OFF ON 2 9
PCU
HLCNT2 Upper fusing roller center
heater lamp control signal
Upper fusing roller edges
heating control
OFF ON 2 11
PCU
HLCNT3 Sub heat roller heater lamp
control signal
Sub heat roller heater lamp
control
OFF ON 1 5
PCU
HLPRout Fusing heater lamp power
relay control signal
Fusing heater lamp power
relay control
Relay OFF Relay ON 2 5
PCU
HLPRout3 Fusing heater lamp power
relay 3 control signal
Fusing heater lamp power
relay 3 control
Relay OFF Relay ON 2 7
PCU
HPFC Horizontal paper transport
clutch control signal
Horizontal paper transport
clutch control
Paper
transport
— 12 7
PCU
HPLS Paper guide lock solenoid
control signal
Paper guide lock solenoid
control
Lock — 12 4
PCU
HSYNC Horizontal sync signal Horizontal sync ——918PCU
HUS-DV Developing humidity sensor Developing section peripheral
humidity detection
——12 26
PCU
HUS-TC Transfer humidity sensor Transfer section peripheral
humidity detection
——817
PCU
HVREMout High voltage control output
control signal (MC/DV/TC)
High voltage ON/OFF control
signal (MC/DV/TC)
OFF ON 15 16
PCU
INTPR2out Interlock power relay "RY5"
control signal
AC PWB relay "RY5" control
(38V line interlock relay)
Relay OFF Relay ON 19 19
PCU
INTPRout Interlock power relay "RY4"
control signal
AC PWB relay "RY4" control
(38V line interlock relay)
Relay OFF Relay ON 19 15
PCU
LDON Laser ON/OFF control signal Laser ON/OFF control ——22 27 PCU
LED0 Document size detection LED
control signal 1
Document size detection LED
control
——35
SCN
LED1 Document size detection LED
control signal 0
Document size detection LED
control
——36
SCN
LPPD LCC paper pass detection
signal
Detection of paper entry from
LCC
Paper pass — 18 12
PCU
LSU_S/H Laser beam horizontal sync
signal
Laser beam horizontal position
timing control
——22 25
PCU
M1LUD Paper tray upper limit detection
signal (Paper feed tray 3)
Paper tray upper limit detection
(Paper feed tray 3)
Upper limit — 16 13
PCU
M1LUM Lift-up motor control signal
(Paper feed tray 3)
Lift-up motor control (Paper
feed tray 3)
Stop Up 16 27
PCU
M1PED Paper empty detection signal
(Paper feed tray 3)
Paper empty detection (Paper
feed tray 3)
Paper
empty
Paper
present
16 7
PCU
Signal name Name Function/Operation
Connector level
Connector
No.
Pin No.
PWB
name
Remark
"L" "H"
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