e-STUDIO5540C/6540C/6550C/5560C/6560C/6570C © 2011 - 2015 TOSHIBA TEC CORPORATION All rights reserved
OUTLINE OF THE MACHINE
3 - 38
3.3.7 PC boards
Symbol Name Function Remarks P-I
RADF RADF control PC board Controls the RADF. Fig. 3-4 88-23
CCD CCD driving PC board (CCD board) Scanning originals with CCD Fig. 3-5 54-15
SLG Scanning section control PC board
(SLG board)
Controlling the scanning section Fig. 3-5 54-9
INV Lamp inverter board Controlling the exposure lamp Fig. 3-5 52-4
DSP Display PC board (DSP board) Controlling the whole control panel Fig. 3-26 3-32
KEY1 Key PC board-1 (KEY-1 board) Controlling the key switches and LEDs Fig. 3-26 3-31
KEY2 Key PC board-2 (KEY-2 board) Controlling the key switches and LEDs Fig. 3-26 3-30
IMG Image processing PC board
(IMG board)
Controlling the image processing Fig. 3-22 68-13
SYS System control PC board (SYS board) Controlling the whole system and
image processing
Fig. 3-22 68-29
LGC Logic PC board (LGC board) Controlling the print engine section Fig. 3-22 69-18
SNS H-sync detection PC board
(SNS board)
Detecting the laser beam position Fig. 3-14 48-1
LDR-Y Laser driving PC board-Y
(LDR-Y board)
Driving the Y laser diode Fig. 3-14 48-1
LDR-M Laser driving PC board-M
(LDR-M board)
Driving the M laser diode Fig. 3-14 48-1
LDR-C Laser driving PC board-C
(LDR-C board)
Driving the C laser diode Fig. 3-14 48-1
LDR-K Laser driving PC board-K
(LDR-K board)
Driving the K laser diode Fig. 3-14 48-1
EPU EPU PC board (EPU board) Storing information of the developer
unit (EPU)
Fig. 3-11 61-24
V0S Drum surface potential sensors control
PC board (V0S board)
Controlling the drum surface potential
(V0) sensors
Fig. 3-11 61-25
PFC Paper feeding control PC board (PFC
board)
Controlling paper feeding Fig. 3-22 69-23
ADU ADU control PC board (ADU board) Controlling the automatic duplexing unit Fig. 3-16 18-35
DRV DRV PC board Controlling bypass unit, transfer belt
unit and paper exiting
Fig. 3-6 46-35
IH Heater control PC board
(IH board)
Controlling the IH coil of the fuser unit Fig. 3-8 38-34
FIL Filter PC board (FIL board) • Filtering out the AC power noise
• Power supplying to each damp
heater
Fig. 3-22 70-6
RAM-S SRAM board <for SYS board> Storing the setting or adjustment value,
etc. used for the control by the system
control PC board
Fig. 3-22 68-30
RAM-L SRAM board <for LGC board> Storing the setting or adjustment value,
etc. used for the control by the logic PC
board
Fig. 3-22 69-20
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