AR-M550 (serv.man21). (14) Signal name list - Sharp Copying Equipment Service Manual (repair manual). Page 7

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AR-M550/M620  SIGNAL NAME LIST  14 - 7
PNC-a
Count-up signal (Personal 
counter)
Count up (Personal counter)
2
20
PCU
POD1
Paper exit detection 1 signal
Paper exit detection from 
fusing
Paper pass
5
3
PCU
POD2
Paper exit detection 2 signal
Paper pass detection from 
paper exit
Paper pass
5
9
PCU
POD3
Paper exit detection 3 signal
Paper exit detection to upper 
section paper exit tray (Full 
detection) 
Paper pass
5
15
PCU
POF
Power OFF status signal
Power OFF status
Power OFF
Power ON
9
3
PCU
POF_SCN
Power off signal
Power OFF status signal 
(Output from PCU)
Power OFF
9
43
SCN
POM1A
Paper exit motor 1 (Fusing 
side) control signal (Phase A)
Paper exit unit (Fusing side) 
paper transport
10
1
PCU
POM1B
Paper exit motor 1 (Fusing 
side) control signal (Phase B)
Paper exit unit (Fusing side) 
paper transport
10
3
PCU
POM1XA
Paper exit motor 1 (Fusing 
side) control signal (Phase /A)
Paper exit unit (Fusing side) 
paper transport
10
2
PCU
POM1XB
Paper exit motor 1 (Fusing 
side) control signal (Phase /B)
Paper exit unit (Fusing side) 
paper transport
10
4
PCU
POM2A
Paper exit motor 2 (Paper exit 
side) control signal (Phase A)
Paper exit unit (paper exit side) 
paper transport
10
5
PCU
POM2B
Paper exit motor 2 (Fusing 
side) control signal (Phase B)
Paper exit unit (paper exit side) 
paper transport
10
7
PCU
POM2XA
Paper exit motor 2 (Fusing 
side) control signal (Phase /A)
Paper exit unit (paper exit side) 
paper transport
10
6
PCU
POM2XB
Paper exit motor 2 (Fusing 
side) control signal (Phase /B)
Paper exit unit (Paper exit side) 
paper transport
10
8
PCU
PPD
Resist roller front paper pass 
detection signal
Paper pass detection in front of 
resist roller
Paper pass
12
15
PCU
PROFF_CNT BUP-PR control signal (Main 
power OFF signal)
Main power OFF signal (output 
from controller)
End
9
4
PCU
PRON_FAX
BUP-PR control signal (Main 
power ON signal)
Main power ON signal (Output 
front FAX unit)
Boot
9
1
PCU
PSBC
Resist roller brake clutch 
control signal
Resist roller brake clutch 
control
Paper 
transport 
enable
12
11
PCU
PSPS
Separation solenoid control 
signal
Separation solenoid control
Separation
8
13
PCU
READY
LSU motor lock detection 
signal
LSU motor lock detection
Rotation
Stop/Lock
22
5
PCU
READY
Copy enable signal (Auditor)
Copy enable (Auditor)
Copy 
enable
5
4
SCN
RES_CCD
Reset signal (CCD)
Reset (CCD)
Reset
1
64
SCN
RES_CIS
Reset signal (CIS)
Reset (CIS)
Reset
10
15
SCN
RES_FIN
Finisher reset signal
Finisher reset
Operation 
enable
Reset
17
19
PCU
RES_LCC
LCC reset signal
LCC reset
Operation 
enable
Reset
18
11
PCU
RES_MFP
Main unit reset signal (MFP)
Not used.
Reset
9
12
SCN
RES_SCN
Scanner reset signal
Scanner reset (output from 
controller)
Reset
9
44
SCN
RRC
Resist roller clutch control 
signal
Resist roller clutch control (The 
relative position of print image 
and paper is controlled.) 
Paper 
transport
7
4
PCU
RTH1
Heat roller temperature 
detection signal
Heat roller temperature 
detection
2
6
PCU
RTH2
Pressure roller temperature 
detection signal
Pressure roller temperature 
detection
2
10
PCU
RTH3
Sub heat roller temperature 
detection signal
Sub heat roller temperature 
detection
2
14
PCU
RXD_CCD1
Serial I/F data (CCD)
Serial I/F data (CCD-scanner 
control PWB)
1
65
SCN
RXD_CCD2
Serial I/F data (CIS)
Serial I/F data (CCD-scanner 
control PWB)
10
16
SCN
Signal name
Name
Function/Operation
Connector level
Connector 
No.
Pin No.
PWB 
name
Remark
"L"
"H"
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