Toshiba e-STUDIO 2555C Service Manual page 1048

14.2.2 Electric Parts Layout
[A] Scanner unit, control panel
M1
S25
S21
S22
S23
[E] Fuser unit
M4
IH-COIL
M13
THMO1
[I] PC board, power supply
ADU
F4
F7
HDD
F3
PS
SRAM
F8
Main memory
Motors and fans
Wire harness
Symbol Name Figure
location
SCAN-MOT
M1 [A] 3-D
Scan motor
FEED/DEV-MOT
M2 [A] 6-E
Paper feeding/developer unit drive motor
DRM-SW-MOT
M3 [C] 6-E
Mono/color switching motor
FUS-MOT
M4 [E] 6-C
Fuser motor
REV-MOT
M5 [E] 6-D
Reverse motor
DRM/TBU-MOT
M6 [C] 7-H
Drum/TBU motor
USD-TNR-MOT
M7 [B] 8-D
Waste toner paddle motor
TNR-MOT-Y
M8 [B] 8-H
Toner motor-Y
TNR-MOT-M
M9 [B] 8-H
Toner motor-M
TNR-MOT-C
M10 [B] 8-H
Toner motor-C
TNR-MOT-K
M11 [B] 8-H
Toner motor-K
ADU-MOT
M12 [H] 6-E
ADU motor
FUS-CR-MOT
M13 [H] 6-D
Pressure roller contact/release motor
5-A
RGST-MOT
M14 [H] 6-E
Registration motor
7-E
4-B
TUP-MOT
M15 [H] 6-E
Tray-up motor
7-E
SYS-FAN
F1 [I] 2-B
SYS cooling fan
OZN-FAN
F2 [I] 5-B
Ozone exhaust fan
SCT-FAN
F3 [I] 8-C
Suctioning fan
FUS-FAN1
F4 [I] 6-F
Fuser section cooling fan
DVP-FAN
F5 [I] 5-B
Developer unit cooling fan
IH-FAN
F6 [I] 6-A
IH board cooling fan
EXT-FAN
F7 [I] 8-C
Exit section cooling fan
PS-FAN
F8 [I] 5-G
Power supply unit cooling fan
FUS-FAN2
F9 [I] 6-H
Fuser section cooling fan 2
e-STUDIO2555C/3055C/3555C/4555C/5055C
[B] Toner cartridge, waste toner box
S24
CCD
KEY
CTIF
CTRG
TCP
CTRG
DSP M8
[F] Image quality control
S29
S13
THM1
THM5
THM2
S27
S28
[J] Cover switch, Damp heater
SW5
DH1
SYS
LGC
SW20
EEPROM
F6
IH
F5
F1
HVT
DH4
FIL
THMO2
F2
DRV
Sensors and Switches
Wire harness
Symbol Name Figure
location
ATTNR-SNR-K
S1 [C] 8-A
Auto-toner sensor-K
ATTNR-SNR-C
S2 [C] 8-A
Auto-toner sensor-C
ATTNR-SNR-M
S3 [C] 8-A
Auto-toner sensor-M
ATTNR-SNR-Y
S4 [C] 8-A
Auto-toner sensor-Y
CST1-EMP-SNR
S5 [G] 4-D
1st drawer empty sensor
RGST-PASS-SNR
S6 [F] 8-C
Registration pass sensor
IMG-POS-SNR-F
S7 [F] 8-B
Image position aligning sensor (Front)
IMG-POS-SNR-R
S8 Image position aligning sensor (Rear)/Image [F] 8-C
quality sensor
USD-TNR-PDL-SNR
S9 [B] 8-D
Waste toner paddle rotation detection sensor
TEMP/HUMI-SNR
S10 [D] 8-D
Temperature/humidity sensor
DRM-SW-SNR
S11 [C] 6-D
Drum switching detection sensor
1ST-TRNS-SW-SNR 6-G
S12 [C]
1st transfer roller status detection sensor 7-G
EXIT-SNR
S13 [E] 7-B
Exit sensor
ADU-U-SNR
S14 [H] 7-E
ADU entrance sensor
ADU-L-SNR
S15 [H] 7-E
ADU exit sensor
SFB-FEED-SNR
S16 [H] 4-B
Bypass feed sensor
PWA-F-SFB
S17 [H] 4-B
Paper width detection PC board (SFB board)
CLNG-SNR
S18 [G] 4-B
Paper clinging detection sensor
RGST-SNR
S19 [G] 4-B
Registration sensor
TRANS-SNR
S20 [G] 4-B
Feed sensor
PLTN-SNR1
S21 [A] 3-E
Platen sensor-1
PLTN-SNR2
S22 [A] 3-E
Platen sensor-2
HOME-SNR
S23 [A] 3-E
Carriage home position sensor
APS1
S24 [A] 3-E
Automatic original detection sensor-1
APS2
S25 [A] 3-E
Automatic original detection sensor-2
REV-SNR
S26 [A] 6-F
Reverse sensor
FR-RD-SNR
S27 [A] 6-B
Fuser roller rotation detection sensor
PR-CR-SNR1
S28 Pressure roller contact/release detection sensor [A] 6-B
1
PR-CR-SNR2
S29 Pressure roller contact/release detection sensor [A] 6-B
2
CST1-PR-SNR
S30 [A] 4-D
1st drawer paper remaining sensor
CST1-TRY-SNR
S31 [A] 4-D
1st drawer tray-up sensor
CST2-FEED-SNR
S32 [A] 4-E
2nd drawer paper feed sensor
CST2-PR-SNR
S33 [A] 4-D
2nd drawer paper remaining sensor
CST2-EMP-SNR
S34 [A] 4-D
2nd drawer empty sensor
CST2-TRY-SNR
S35 [A] 4-D
2nd drawer tray-up sensor
WTNR-NFL-SNR
S36 [A] 8-C
Waste toner amount detection sensor
[C] Developer unit
CLT2
M3
CTRG
SW11
M11
S12
CTRG
SW10
M10
S11
M9
SW9
SW13
S36 S3
S9
S4
M7
[G] Paper feeding unit
M14
S8
SOL1
M2
S6 S5
S7
M15
S30
SW8
S34
S33
SW7
SW18
SW3
SW2
SW1
THMO3
DH3
DH2
Wire harness
Symbol Name Figure
location
FRT-COV-SW
SW1 [J] 8-D
Front cover switch
F-COV-INTLCK-SW
SW2 [J] 4-G
Front cover interlock switch
S-COV-INTLCK-SW
SW3 [J] 4-G
Side cover interlock switch
MAIN-SW
SW4 [I] AC Wire Harness
Main power switch
SIDE-COV-SW
SW5 [J] 6-C
Side cover switch
CST1-WDT-SW
SW6 [G] 4-C
1st drawer paper width detection switch
CST1-LGT-SW
SW7 [G] 4-C
1st drawer paper length detection switch
CST1-SW
SW8 [G] 4-E
1st drawer detection switch
SW9 Y drum old/new detection switch [C] 8-B
SW10 M drum old/new detection switch [C] 8-B
SW11 C drum old/new detection switch [C] 8-B
SW12 K drum old/new detection switch [C] 8-B
SW13 Y developer unit old/new detection switch [C] 8-B
SW14 M developer unit old/new detection switch [C] 8-B
SW15 C developer unit old/new detection switch [C] 8-B
SW16 K developer unit old/new detection switch [C] 8-B
CST2-WDT-SW
SW17 [G] 4-C
2nd drawer paper width detection switch
CST2-LGT-SW
SW18 [G] 4-C
2nd drawer paper length detection switch
CST2-SW
SW19 [G] 4-E
2nd drawer detection switch
JAM-CVR-SW
SW20 [G] 4-E
Jam access cover opening/closing switch
Electromagnetic spring clutches
Wire harness
Symbol Name Figure
location
CST1-FEED-CLT
CLT1 [G] 6-E
1st drawer feed clutch
1ST-TRNS-CLT 6-G
CLT2 [C]
1st transfer contact/release clutch 7-G
SFB-FEED-CLT
CLT3 [H] 4-A
Bypass feed clutch
CST2-FEED-CLT
CLT4 [H] 5-B
2nd drawer feed clutch
FEED-CLT-H
CLT5 [H] 5-B
Transport clutch (H)
FEED-CLT-L
CLT6 [H] 5-B
Transport clutch (L)
Solenoids
Wire harness
Symbol Name Figure
location
SNR-SHUT-SOL
SOL1 [C] 8-C
Sensor shutter solenoid
REV-SOL
SOL2 [C] 6-D
Reverse gate solenoid
[D] Data writing
M6
SW12
SW16
SW15
SW14
LED4
S1
LED3
S2
LED2
THM4
LED1
THM5
[H] Automatic duplexing unit, bypass feed unit
M5
SOL2
S26
S18
S19
S20
CLT1
CLT3
CLT6
CLT4
SW19
SW6
SW17
PC boards
Wire harness
Symbol Name Figure
location
PWA-F-CCD 3-C
CCD [A]
CCD driving PC board (CCD board) 3-D
PWA-F-DSP
DSP [A] 2-E
Display PC board (DSP board)
PWA-F-KEY
KEY [A]
Key PC board (KEY board)
PWA-F-CTIF
CTIF [B] 8-H
Toner cartridge interface PC board (CTIF board)
PWA-F-CTRG 8-G
CTRG [B]
Toner cartridge PC board (CTRG board) 8-H
PWA-F-ADU
ADU [H] 6-E
ADU control PC board (ADU board)
PWA-H-SYS
SYS [I] 1-A
System control PC board (SYS board)
PWA-F-LGC
LGC [I] 5-A
Logic PC board (LGC board)
PWA-F-SRAM
SRAM [I] 1-F
SRAM board
PWA-DRV
DRV [I] 5-A
Drive PC board (DRV board)
PWA-H-IH
IH [I] 6-A
Heater control PC board (IH board)
Lamps and heaters
Wire harness
Symbol Name Figure
location
LP-EXPO
EXP [A] 3-F
Exposure lamp
LP-LED-Y
LED1 [D] 7-B
LED print head-Y
LP-LED-M
LED2 [D] 7-C
LED print head-M
LP-LED-C
LED3 [D] 7-D
LED print head-C
LP-LED-K
LED4 [D] 7-E
LED print head-K
LP-ERS-Y
ERS-Y [D] 8-D
Discharge LED-Y
LP-ERS-M
ERS-M [D] 8-D
Discharge LED-M
LP-ERS-C
ERS-C [D] 8-D
Discharge LED-C
LP-ERS-K
ERS-K [D] 8-D
Discharge LED-K
SCN-DH-L
DH1 [J] AC Wire Harness
Scanner damp heater
DRM-DH-L
DH2 [J] AC Wire Harness
Drum damp heater (Left)
DRM-DH-R
DH3 [J] AC Wire Harness
Drum damp heater (Right)
IH-COIL
IH-COIL [J]
IH-COIL
S10
ERS-K
ERS-C
ERS-M
ERS-Y
M12
S14
S15
S17
S16
Thermistors and thermostats
Wire harness
Symbol Name Figure
location
THMS-FR-C
THM1 [E] 6-B
Fuser roller center thermistor
THMS-FR-E
THM2 [E] 6-B
Fuser roller edge thermistor 1
THMS1-DRM
THM3 [E] 8-D
Drum thermistor
THMS2-DRM 7-F
THM4 [E]
Drum thermistor 7-G
THMS-FR-S
THM5 [E] 6-B
Fuser roller side thermistor 2
THERMO-FR
THMO1 [E] AC Wire harness
Fuser roller thermostat
THERMO-DRM-DH-L
THM02 [J] AC Wire harness
Drum damp heater thermostat (Left)
THERMO-DRM-DH-R
THM03 [J] AC Wire harness
Drum damp heater thermostat (Right)
Others
Wire harness
Symbol Name Figure
location
TCP
TCP [A]
Touch panel
EEPROM
EEPROM Electrically Erasable Programmable Read Only [I]
Memory
HDD 3-G
HDD [I]
Hard disk 3-F
Main
Main memory [I]
memory
PS-ACC
PS [I] 4-F
Switching regulator
PS-HVT
HVT [I] 8-G
High-voltage transformer