2KR/2KS-1
2-3-7
YC2
45
GND
-
-
Ground
Connected
to the main
PWB
46
MAIN_EGIRN
I
0/3.3 V DC
MPWB interrupt signal
47
MAIN_SO
O
0/3.3 V DC (pulse) MPWB serial communication data signal
48
MAIN_SDIR
I
0/3.3 V DC
MPWB communication direction signal
49
MAIN_SBSY
I
0/3.3 V DC
MPWB busy signal
50
24V_OFF
I
0/3.3 V DC
MPWB 24 V down signal
YC3
1
5VSAFE
I
5 V DC
5 V DC power output to APCPWB
Connected
to the laser
scanner unit
2
SAMPLE1
O
0/3.3 V DC
APCPWB sample/hold signal
3
POWCONT
O
Analog
APCPWB power control signal
4
LASER
O
0/3.3 V DC
Laser diode output signal
5
VD+
O
0/3.3 V DC (pulse) Video data signal
6
VD-
O
0/3.3 V DC (pulse) Video data signal
7
GND
-
-
Ground
8
PD
I
0/3.3 V DC
Laser sync signal
9
GND
-
-
Ground
10
R24V
O
24 V DC
24 V DC power output to PM
11
GND
-
-
Ground
12
SCAN
O
0/24 V DC
PM: On/Off
13
SCRDYN
I
0/3.3 V DC
PM ready signal
14
SCCLK
O
0/3.3 V DC (pulse) PM clock signal
YC4
A1
GND
-
-
Ground
Connected
to the regis-
tration
switch, fuser
unit, duplex
feed clutch,
duplex
paper con-
veying
switch,
paper con-
veying fan
motor 1/2/3
and duplex
fan motor 1/
2/3
A2
RGFEPS
I
0/3.3 V DC
RSW: On/Off
A3
+5V
O
5 V DC
5 V DC power output to RSW
A4
FUSP0
I
0/3.3 V DC
Fuser unit distinction signal
A5
+3.3V
O
3.3 V DC
3.3 V DC power output to FUPWB
A6
THFUSER
I
Analog
FTH1 detection voltage signal
A7
GND
-
-
Ground
A8
THCSTD
I
Analog
FTH2 detection voltage signal
A9
THCSEN
I
Analog
FTH2 detection voltage signal
A10
OPEN
-
-
Not used
B1
R24V
O
24 V DC
24 V DC power output to DUPFCL
B2
DUCL
O
0/24 V DC
DUPFCL: On/Off
B3
GND
-
-
Ground
B4
DUFEPS
I
0/3.3 V DC
DUPPCSW: On/Off
B5
+5V
O
5 V DC
5 V DC power output to DUPPCSW
B6
+24V2
O
24 V DC
24 V DC power output to PCFM1,2,3
B7
FAN_CONV
O
0/24 V DC
PCFM1,2,3: On/Off
B8
DUSET
I
0/3.3 V DC
Duplex unit distinction signal
B9
+24V2
O
24 V DC
24 V DC power output to DUPFM1,2,3
B10
FAN5
O
0/24 V DC
DUPFM1,2,3: On/Off
Connector
Pin No.
Signal
I/O
Voltage
Description
Summary of Contents for TASKalfa 420i
Page 1: ...SERVICE MANUAL Published in May 2010 842KS113 2KSSM063 Rev 3 TASKalfa 420i TASKalfa 520i ...
Page 4: ...This page is intentionally left blank ...
Page 10: ...This page is intentionally left blank ...
Page 14: ...2KR 2KS This page is intentionally left blank ...
Page 224: ...2KR 2KS 1 4 66 This page is intentionally left blank ...
Page 328: ...2KR 2KS 2 3 30 This page is intentionally left blank ...
Page 371: ...INSTALLATION GUIDE FOR PAPER FEEDER ...
Page 381: ...INSTALLATION GUIDE FOR 3000 SHEETS PAPER FEEDER ...
Page 436: ...INSTALLATION GUIDE FOR CENTER FOLDING UNIT ...
Page 450: ...INSTALLATION GUIDE FOR MAILBOX ...
Page 458: ...INSTALLATION GUIDE FOR HOLE PUNCH UNIT ...
Page 470: ...INSTALLATION GUIDE FOR BUILT IN FINISHER ...
Page 483: ...INSTALLATION GUIDE FOR JOB SEPARATOR ...
Page 491: ...INSTALLATION GUIDE FOR FAX System ...
Page 507: ......
Page 508: ......