Sharp MX-M550U

MX-M700N ELECTRICAL SECTION 11 – 21
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
—127PCU
HPLS Paper guide lock solenoid
control signal
Paper guide lock solenoid control Lock — 12 4 PCU
HSYNC Horizontal sync signal Horizontal sync — — 9 18 PCU
HUS-DV Developing humidity sensor Developing section peripheral
humidity detection
— — 12 26 PCU
HUS-TC Transfer humidity sensor Transfer section peripheral
humidity detection
——817PCU
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
——35SCN
LED1 Document size detection LED
control signal 0
Document size detection LED
control
——36SCN
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
M1PFC Paper feed clutch (M1) control
signal (Paper feed tray 3)
Paper feed tray 3 paper feed
control
Paper
transport
—1625PCU
M1PFD Paper pass detection signal
(Multi paper feed tray 3)
Paper feed tray 3 paper pass
detection
Paper pass — 16 21 PCU
M1PUS Paper pickup solenoid control
signal (Paper feed tray 3)
Paper pickup roller control
(Paper feed tray 3)
Roller UP Paper feed 16 3 PCU
M1PWS Paper feed tray paper width
detection signal
(Paper feed tray 3)
Multi paper feed tray paper width
detection (Paper feed tray 3)
— — 16 32 PCU
M1SPD Paper remaining quantity
detection signal
(Paper feed tray 3)
Paper remaining quantity detection
(Multi paper feed tray 3)
— Remaining
paper
quantity
66% or less
15 31 PCU
M1SS1 Paper size detection signal
(Paper feed tray 3)
Paper size detection
(Paper feed tray 3)
— — 15 21 PCU Refer to
the
separate
table (*1)
M1SS2 Paper size detection signal
(Paper feed tray 3)
Paper size detection
(Paper feed tray 3)
— — 15 23 PCU
M1SS3 Paper size detection signal
(Paper feed tray 3)
Paper size detection
(Paper feed tray 3)
— — 15 25 PCU
M1SS4 Paper size detection signal
(Paper feed tray 3)
Paper size detection
(Paper feed tray 3)
— — 15 27 PCU
M2LUD Paper tray upper limit
detection signal
(Paper feed tray 4)
Paper tray upper limit detection
(Paper feed tray 4)
— Upper limit
detection
16 14 PCU
M2LUM Lift-up motor control signal
(Paper feed tray 4)
Lift-up motor control
(Paper feed tray 4)
Stop Up 17 1 PCU
M2PED Paper empty detection signal
(Paper feed tray 4)
Paper empty detection
(Paper feed tray 4)
Paper
empty
Paper
present
16 8 PCU
M2PFC Paper feed clutch (M1) control
signal (Paper feed tray 4)
Paper feed tray 4 paper feed
control
Paper
transport
—177PCU
M2PFD Paper pass detection signal
(Multi paper feed tray 4)
Paper feed tray 4 paper pass
detection
Paper pass — 16 22 PCU
M2PUS Paper pickup solenoid control
signal (Paper feed tray 4)
Paper pickup roller control
(Paper feed tray 4)
Roller UP Paper feed 16 4 PCU
Signal name Name Function/Operation
Connector level Connector
No.
Pin
No.
PWB
name
Remark
“L” “H”