Toshiba e-STUDIO2008A Service Manual page 61

3.3.5 PC boards
Symbol Name
CCD PWA-F-CCD
CCD driving PC board (CCD board)
CTIF PWA-F-CTIF
Toner cartridge interface PC board
(CTIF board)
CTRG PWA-F-CTRG
Toner cartridge PC board
(CTRG board)
DSP PWA-F-DSP
Display PC board (DSP board)
EPU PWA-F-EPU
EPU memory board (EPU board)
KEY PWA-F-KEY
Key control PC board (KEY board)
LDR PWA-F-LDR
Laser driving PC board
(LDR board)
LGC PWA-F-LGC
Logic PC board (LGC board)
SFB PWA-F-SFB
Paper size detection board
SNS PWA-F-SNS
H-sync signal detection PC board
(SNS board)
SYS PWA-F-SYS
System control PC board
(SYS board)
3.3.6 Lamps and heaters
Symbol Name
DH1 DRM-DH
Drum damp heater
DH2 SCN-DH
Scanner damp heater
ERS LP-ERS
Discharge LED
EXP LP-EXPO
Exposure lamp
LAMP1 CNTR-LAMP
Center heater lamp
LAMP2 SIDE-LAMP
Side heater lamp
LAMP3 LAMP-TRIPLE
Sub heater lamp
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Function
Controlling CCD and outputting the
analog signal
Interface for detecting the toner
cartridge (Detecting the CTRG board)
Storing the status of the toner cartridge
Controlling the whole control panel
Determining the used status of the
developer unit (EPU) (Determining
whether a unit is new or used) (Service
management required)
Controlling the key switches and LEDs
Driving the laser diode
Controlling the print engine section
Detecting the width of paper on the
bypass tray
Detection of the laser beam position
Controlling the whole system and image
processing
Function
Preventing condensation of the drum
Preventing condensation of the mirrors
of the carriages
Removing the residual charge from the
drum surface
Exposing the original to the light (LED)
Heating the center section of fuser roller Fig. 3-5
Heating the section of both sides of
fuser roller
Sub heating of the fuser roller
* 35ppm/45ppm/50ppm only
e-STUDIO2008A/2508A/3008A/3508A/4508A/5008A
3 - 15
Remarks P-I
12-9
Fig. 3-3
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Fig. 3-5
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Fig. 3-5
3-21
Fig. 3-3
28-21
Fig. 3-4
3-22
Fig. 3-3
11-1
Fig. 3-5
9-13
Fig. 3-6
19-13
Fig. 3-9
11-1
Fig. 3-5
9-10
Fig. 3-6
Remarks P-I
5-20
Fig. 3-4
12-17
Fig. 3-3
27-32
Fig. 3-4
23-3
Fig. 3-3
31-19
31-20
Fig. 3-5
31-21
Fig. 3-5
OUTLINE OF THE MACHINE
3