Toshiba 1550 Service Manual page 17

(6) PC boards
Symbol Code name
LGC PWA-F-LGC (Logic PC board)
ACC PS-ACC
(Power supply PC board)
PNL PWA-F-PNL
(Control panel PC board)
LRG PS-LRG
(Lamp regulator PC board)
DCH ASM-DCH
(LED eraser array PC board)
ERS ASM-ERS
(Discharge lamp PC board)
AES PWA-F-AES
FUS PWA-F-FUS (Fuse PC board)
(7) Transformers
Symbol Code name
HVT PS-HVT
(Charging transformer)
(Transfer/separation transformer)
(8) Others
Symbol Code name
ATS SNR-ATC
(Auto-toner sensor)
THMS THMS-HTR
(Heat-roller thermistor)
THERMO K-THERMO
(Thermostat)
FU FU-EXPO (Thermofuse)
TMS-DRM TMS-DRM (Drum thermistor)
Mar. 1998 © TOSHIBA
Go to 1550 DC Harness
Connection Diagram
Function
Controls the entire copier
Supplies electrical power to
ICs, solenoids and motors
Controls condition displays
and operation keys
Controls exposure lamp
Turns on and drives LED
during reduction
Discharge lamp
Reads dark/light of the original
Fuse for the damp heater
circuit.
Function
Generates high voltage
electricity for charging
(negative voltage)
Generates high voltage
electricity for transfer/
separation and developing
bias voltage
Function
Reads toner density with a
magnetic sensor
Detects temperature of the
heat roller
Prevents abnormal heating
of heat roller
Prevents abnormal heating
of the exposure lamp
Detects the drum tempera-
ture roughly
2 - 10
Go to 1560 DC Harness
Connection Diagram
Remarks *Page/item No.
P5, I14
P5, I19
P2, I22
P4, I35
P15, I15
P15, I14
P8, I28
Option P5, I23
Remarks *Page/item No.
P5, I18
Remarks *Page/item No.
P18, I26
P20, I9
P20, I8
P10, I5
P3, I39
1550/1560 GENERAL