Sharp MX-M550U Service Manual page 230

Signal name Name
M2SPD Paper remaining quantity
detection (Paper feed tray 4)
signal
M2SS1 Paper size detection signal
(Paper feed tray 4)
M2SS2 Paper size detection signal
(Paper feed tray 4)
M2SS3 Paper size detection signal
(Paper feed tray 4)
M2SS4 Paper size detection signal
(Paper feed tray 4)
MFPUS Paper pickup solenoid (MFP)
control signal
(Manual paper feed)
MHPS Scanner home position
sensor signal
MHVREM Main charger control signal
MHV-T Main charger trouble
detection signal
MIMA Scanner motor control signal
(Phase A)
MIMB Scanner motor control signal
(Phase B)
MM Main motor control signal
MMCLK Main motor rotating speed
control (CLK) signal
MM-T Main motor lock detection
signal
MPED Manual feed paper empty
detection signal
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 DSPF 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
Function/Operation
Paper remaining quantity detection
(Paper feed tray 4)
Paper size detection
(Paper feed tray 4)
Paper size detection
(Paper feed tray 4)
Paper size detection
(Paper feed tray 4)
Paper size detection
(Paper feed tray 4)
Paper pickup solenoid (MPF)
control (Manual paper feed)
Scanner home position detection
Main charger ON/OFF
Main charger trouble detection
Scanner motor control (Phase A)
Scanner motor control (Phase B)
Main motor ON/OFF control
Main motor RPM control
Main motor lock detection
Manual paper feed tray paper
empty detection
Manual feed tray paper feed roller
control
Manual tray paper pass detection
Manual tray and LCC 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/
LCC paper pass detection
Manual feed/paper feed tray 2/
LCC 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)
MX-M700N ELECTRICAL SECTION 11 – 22
Connector level Connector
"L" "H"
— Remaining
paper
quantity
66% or less
— —
— —
— —
— —
Paper feed —
with the
roller down
— Home
position
ON OFF
Trouble, Normal
no MHV
— —
— —
ON OFF
— —
Rotation Stop/Lock
Paper Paper empty
present
Paper feed —
— Paper pass
Paper pass —
Paper pass Stopper
enable
— —
— Paper
present
— Paper
present
Paper pass —
Paper pass —
— —
— —
Relay ON Relay OFF
Store —
Pull out —
Close —
— —
— —
— —
— —
— —
— —
— —
Pin PWB
Remark
No. No. name
15 32 PCU
15 22 PCU Refer to
the
separate
15 24 PCU
table (*1)
15 26 PCU
15 28 PCU
13 7 PCU
6 1 SCN
15 6 PCU
15 7 PCU
7 1 SCN
7 2 SCN
17 14 PCU
17 16 PCU
17 18 PCU
13 11 PCU
13 20 PCU
13 21 PCU
18 6 PCU
13 17 PCU
13 16 PCU
13 6 PCU
13 10 PCU
12 23 PCU
12 29 PCU
19 23 PCU
9 5 PCU
2 15 PCU
13 12 PCU
13 14 PCU
3 3 SCN
9 14 PCU
1 68 SCN
10 12 SCN
8 3 PCU
8 1 PCU
9 13 PCU
9 10 PCU