2NP
2-3-24
YC30
8
FSR_PRE_S
W
I
0/3.3 V DC
FPRS: On/Off
Connected to
fuser
thermistor
1,2 and eject
sensor, fuser
press release
motor
9
HR_NCTH1
I
Analog
FTH detection voltage (center)
10
HR_NCTH2
O
3.3V
Clock signal
11
PR_TH
I
Analog
FTH detection voltage (press roller)
12
FUSER_SDA
I
Analog
FTH detection voltage (center)
13
FUSER_SCL
I
Analog
FTH detection voltage (center)
14
3.3V1
O
3.3 V DC
3.3 V DC power output to FTH
15
HR_EDGE
I
Analog
FTH detection voltage (edge)
16
GND
-
-
Ground
17
ROTATION
I
3.3 V DC
Rotation detection
YC31
1
GND
-
-
Ground
Connected to
IH PWB
2
IH_RELAY
O
3.3 V DC
Relay remote
3
24V1
O
24 V DC
24 V DC power output to IHPWB
YC32
1
IH_RXD
I
3.3 V DC
Data input
Connected to
IH PWB
2
IH_TXD
O
3.3 V DC
Data out put
3
IH_ROT
O
3.3 V DC
Rotation detection
4
HEARTREM
O
3.3 V DC
Heater remote
5
3.3V1
O
3.3 V DC
3.3 V DC power output to IHPWB?
6
GND
-
-
Ground
YC33
1
DF_CLK
O
0/3.3 V DC(pulse)
DFMPWBClock signalReset signal
Connected to
DF main
PWB
2
DF_SDO
O
0/3.3 V DC(pulse)
DFMPWBSerial comunication data signal
3
DF_SEL
O
0/3.3 V DC
DFMPWB select signal
4
DF_SDI
O
0/3.3 V DC(pulse)
DFMPWBSerial comunication data signal
5
DF_RDY
I
0/3.3 V DC
DFMPWBready signal
6
DF_DET
O
0/3.3 V DC
DFMPWB connect signal
7
GND
-
-
Ground
YC36
1
FCOVER1
I
0/3.3 V DC
FCSW2: On/Off
Connected to
front cover
switch2
2
GND
-
-
Ground
Connector
Pin
Signal
I/O
Voltage
Description
Summary of Contents for TASKalfa 2551ci
Page 1: ...SERVICE MANUAL Published in September 2016 842NP11A 2NPSM06A Rev A TASKalfa 2551ci ...
Page 10: ...This page is intentionally left blank ...
Page 97: ...2NP 1 1 2 74 This page is intentionally left blank ...
Page 259: ...2NP 1 3 162 U486 Details on the modes Figure 1 3 47 Item No Description ...
Page 473: ...2NP 1 5 62 This page is intentionally left blank ...
Page 497: ...2NP 2 1 22 This page is intentionally left blank ...
Page 555: ...2NP 2 3 48 This page is intentionally left blank ...
Page 584: ...Installation Guide DP 770 B Document processor DP 772 Document processor Installation Guide ...
Page 620: ...DP 773 Document processor Installation Guide ...
Page 646: ...PF 791 500 x 2 Paper feeder Installation Guide ...
Page 654: ...PF 810 3000 sheets deck Installation Guide ...
Page 667: ...DF 770 D Document finisher Installation Guide ...
Page 685: ...AK 740 Bridge unit Installation Guide ...
Page 687: ...PH 7A C D Punch unit Installation Guide ...
Page 708: ...DT 730 B Document tray Installation Guide ...
Page 710: ...5 2013 5 302LC56750 01 H F G D D 6 4 3 7 E C D D M4 8 M4 8 M4 8 M4 8 ...
Page 711: ...FAX System W B Installation Guide ...