2NP
2-4-21
YC9
YC16
DLPCDIR
DLPCRDY
DLPCCLK
YC10
DLPCREM
GND
24V1
24V1F1
CLDLPREM
DLMCDIR
DLMCRDY
DLMCCLK
DLMCREM
GND
24VIL3
DLMKDIR
DLMKRDY
DLMKCLK
DLMKREM
YC36
GND
24VIL3
YC17
DLPKDIR
DLPKRDY
DLPKCLK
DLPKREM
EJE_SOL_REM
GND
24V1F2
24VIL3
EJE_MOT_/B
FUSERDIR
EJE_MOT_/A
FUSERRDY
EJE_MOT_B
FUSERCLK
EJE_MOT_A
FUSERREM
GND
3.3V1_A
24VIL3
GND
EJE_FULL_UP
YC18
3.3V1_A
GND
EJE_FULL_DOWN
YC19
GND
JS_LED
YC20
24V1F1
TN_MOT_REM_Y
24V1F1
TN_MOT_REM_C
24V1F1
TN_MOT_REM_M
24V1F1
TN_MOT_REM_BK
YC1
YC6
YC2
YC8
YC7
HVPWB-S
TEMS
HVPWB
EPWB
B9
DC_MAG_M
DC_MAG_BK
RFPWB
SPWB
Relay
7
Relay
1
2
4
3
2
EXIT UNIT
CONVEYING UNIT
1
3
FUFM2
2
REM
4
6
1
2
FEED DRIVE UNIT
MKCNT
BKSCNT
17
FUFM1
2
REM
24VIL
1
T2CNT
HUMDATA
4
HUM_CLK1
HUMDATA
TMPDATA
4
WETCLK1
1
1
5
BMMCNT
MISENS
HVREM
GND
BYACCONT
HVCLKY
13
13
16
14
15
14
SCNT
GND
8
6
BMACCONT
BCSCNT
MCCNT
BYMCNT
HVCLKC
BCMCNT
A8
3
4
BYSCNT
MYCNT
17
1
4
3
11
2
15
1
2
11
16
17
12
11
12
A7
A7
B1
B6
A11
B2
B4
B3
10
5
6
7
8
B7
1
14
DC_SLV_BK
24VIL3
24VIL3
DU_SW
LOOP_SW
GND
4
B8
2
9
14
12
10
3
13
11
3
2
14
4
3
2
1
1
4
RFID_SCL
3.3V1
SEC_CLK
GND
RFID_SDA
2
2
3
4
6
3
9
8
9
7
7
11
24V1F3
3
12
IH_FAN1_REM
IH_FAN1_ALM
2
1
1
GND
4
2
3
9
6
8
3
4
5
4
3
2
2
1
#187
3
CON_FAN_REM
24V1
24V1F1
4
5
DLP_FAN_REM
4
6
3
5V1
24VIL3
GND
FEED1_MOT_REM
FEED1_MOT_CLK
16
15
10
5
6
7
8
10
4
1
FEED_SW
MPF_SOL_REM
24V1F1
GND
3.3V1_A
12
3
2
4
2
6
5
YC25
10
FEED1_CL_REM
24V1F1
RES_CL_REM
24V1F1
11
6
1
Start/Stop
3
3
GND
2
2
4
12
13
5
4
15
14
3
14
CM1
CW/CCW
6
2
24VIL
1
CLK
LD
5
4
3
10
10
7
9
8
1
9
8
1
11
9
11
15
12
3
6
8
7
6
5
2
10
1
2
2
1
1
2
1
3
11
12
B16
B17
B17
8
B16
1
2
5
6
4
5
1
Relay
1
2
DEVFM1
REM
EFM
24V1
REM
24VIL3
2
2
6
TM-Y
24V4
1
C/IHCFM
24V1
ALM
REM
3
1
4
3
5
5
7
6
2
3
2
4
2
2
8
7
7
Relay
BKACCONT
BKMCNT
4
2
HVCLKK
9
7
MMCNT
BMSCNT
3
1
5
10
1
8
6
4
Relay
1
9
7
2
8
3
B9
TM-K
REM
24V4
HVCLKM
24VIL
24VIL
1
B15
2
6
5
10
9
8
5
6
7
7
5
1
BCACCONT
A4
5
5
11
10
10
A3
9
B2
A9
24V1F1
MID_CL_REM
DC_SLV_Y
DC_MAG_C
DC_SLV_C
DC_MAG_Y
DU_CL_REM
A11
MISENS
B5
GND
SP_CONT
T2_CONT
GND
B3
B4
B5
2
1
2
1
B6
3
AC_MAIN_CONT_Y
AC_MAIN_CONT_C
HVU_CLK_Y
B1
A4
TMPDATA
A10
A5
A6
A9
HUM_CLK2
4
A1
A2
4
3
A8
A1
A6
A10
A5
A2
A3
1
6
1
6
1
2
1
3
2
4
3
2
3
4
5
12
3.3V1_A
MPF_TRAY
10
IH_FAN2_ALM
IH_FAN2_REM
24V1
3
3.3V1_A
FUSER_FAN1_REM
GND
4
5
Relay
1
7
6
2
7
DC_MAIN_CONT_BK
DC_MAIN_CONT_M
AC_MAIN_CONT_BK
5
3
1
YC24
2
4
24VIL3F1
B7
B11
B12
6
HVU_CLK_BK
B13
B11
5
B15
B14
B12
B13
B14
B8
B10
GND
3
1
1
2
2
5
JEPS
3.3V4
Vcc or GND
PFS
Vout
Vout
HVU1_REM
7
2
3
DC_SLV_M
GND
7
8
9
3.3V4
3
3.3V4
1
2
GND
1
2
Vout
MPFWSIZE
6
DUS
2
Vout
GND
3
3.3V4
2
Vout
4
/B
GND
GND
MPF_PAPER_SET
8
3
1
3.3V0
4
1
/A
JPFS
3.3V4
Vout
A
B
Vout
5V4
3
EM
2
3
1
24VIL
1
2
GND
FUPS
2
3
3
4
7
6
1
3
2
2
1
2
1
2
3
3
7
1
5
1
6
Relay
DUCL
24VIL
2
GND
1
FS1
3.3V4
3
MPSOL
Vout
12
1
1
1
2
1
3
2
1
MPPS
1
3
2
1
1
Relay
2
3
3
2
5
4
1
1
3
2
6
7
3
1
REM
1
3
1
3
Relay
2
9
3
2
RCL
6
1
24VIL
3
11
7
10
9
8
3
5
Relay
1
3
3
10
9
8
7
1
Relay
11
PFCL1
MCL1
24VIL
24VIL
REM
REM
16
24V4
REM
REM
1
13
16
1
3
1
Relay
4
2
3
1
13
1
6
4
5
1
2
2
1
7
5
5
12
7
10
6
3
4
2
1
3
16
3
6
7
4
#187
6
4
2
2
1
3
FCSW1
1
1
2
3
1
2
3
2
1
1
1
3
4
2
3
4
5
4
3
2
1
5
6
11
18
17
9
10
13
11
13
6
14
18
3
4
6
3
17
4
16
2
5
YC22
14
13
11
4
1
5
6
7
2
3
4
1
8
5
6
2
19
19
16
12
15
1
9
20
14
10
20
#187
1
1
1
2
24V4
REM
2
1
1
Relay
LD
GND
24VIL3
CLK
Start/Stop
24VIL3
GND
LD
Start/Stop
GND
CW/CCW
24V1
Start/Stop
CLK
LD
CLK
Relay
1
1
3
4
Relay
3
1
2
2
2
3
4
1
REM
2
1
Relay
Relay
IHFM
ALM
24V1
3
2
1
2
REM
REM
24V4
REM
5
2
1
TM-M
1
2
1
2
TM-C
24V4
2
3
1
5
4
6
1
2
3
FUM
3
1
CW/CCW
5
6
Start/Stop
GND
24VIL3
CLK
5
DEVM-K
24VIL3
DEVM-CMY
6
4
6
6
1
2
6
GND
1
24V1
REM
5
4
1
CLK
LD
3
CW/CCW
DEVSCL
1
5
3
5
3
4
7
4
3
8
2
1
3
2
DRM-K
LD
CW/CCW
CW/CCW
Start/Stop
DRM-CMY
FCOVER1
1
12
15
3
1
SUB_SDA
GND
3.3V1
24V1 F
YC29
2
4
4
3
2
3
4
4
7
2
4
4
7
1
6
2
8
5
1
4
3
2
2
3
6
13
5
4
12
1
6
5
14
15
13
17
9
3
4
2
2
14
15
Relay
1
3
3
14
12
11
FEED1_MOT_RDY
FEED1_MOT_DIR
11
13
2
GND
5
5
3
WETCLK0
2
2
3
2
Relay
5
4
1
4
24VIL
1
1
8
T1MCNT
2
2
7
T1YCNT
3
3
6
HVREM
4
4
5
GND
8
8
1
CLCNT
5
5
4
T1CCNT
6
24VIL1 F
4
6
3
24VIL1 S
6
T1_CONT_Y
T1KCNT
7
7
2
2
1
3.3V1
RFID_SCL
RFID_SDA
GND
SUB_SCL
5
24VIL2 S
3
7
8
3.3V1
T1_CONT_M
GND
FUSER_FAN2_REM
B10
3.3V2_A
24VIL3
MPF_WSIZE
DC_MAIN_CONT_C
HVU_CLK_C
24VIL3
YC23
1
2
16
15
12
Relay
11
12
FCSW2
8
6
7
8
10
2
1
1
2
13
5
1
11
16
5
7
4
7
10
2
11
4
SEC_DATA
GND
3.3V1
9
7
5
13
Relay
1
2
1
3
2
5
3
4
3
SW_OFF
MPTDSW
2
2
1
SW_ON
COMMON
MPPWSW
MPPLSW
FSSOL
HVU_CLK_M
24VIL3
1
9
14
12
MPF_LSIZE
GND
3
YC21
GND
T1_CONT_BK
T1_CONT_C
CL_CONT
AC_MAIN_CONT_M
RCSW1
DC_MAIN_CONT_Y
GND
2
HVU2_REM
#187
2
1
(8) Wiring diagram
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 ...