Block Diagram
10-2
10.1 Controller Block Diagram
S
Controller Block Diagram
Parallel (IEEE)
1284
USB
2.0
UART(Rx,Tx), Reset
Ethernet
(DN Only)
Deve
Drive
Deve
OEM
T1, T2(+), Charge,
AC_Vpp, AC_Freq/Duty
Supply (PWM)
T2(-), AC Enable
Sts, Cmd, Clk, Rdy
nVDO, nLDon, nSH, nHsync,nStart, nRDY, Clk
CONTROL PANEL
Solenoid: 4EA
Clutch: 4EA
BLDC Motor
Deve. Cartrid ge
( Y/M /C /K )
CRUM B'd
Supply
Deve
Blade
HVP
T1 (+DC)
T2(+DC, -DC)
SUPPLY(AC+DC)
CHARGE (-DC)
Charge, T1, T2
T1 Roll
T2 Roll
Charge Roll
FAN (Fuser)
BLDC Motor (Main)
Solenoid (CST_PU, MP, Duplex, T2, ITB_CLN)
Clutch (feed)
HIC
Super1284
NPC
Board
nRD,nWR
nNPC_CS
nWait,
nNPC_INT
Flash Memory
AM29LV160*2
2MB
SDRAM
K4S561632 *2
64MB
EEPROM
93C86L
2KBytes
SDRAM DIMM Option
32MB, 64MB, 128MB
D[31:16]
A[15:3]
A[21:2]
D[31:0]
SA[12:0]
SD[31:0]
SD[31:0]
SA[12:0]
CS,SK
DI,DO
PD[7:0]
nRD,nWR
nCS_LPEC
nRESET
Crystal
12.00M
A[9:2]
SPGPm
ARM946ES
Embedded
Main Control Board
nVDO
OSC
19.9M
Engine
Control
ASIC
(LPEC1)
USB
FUSER
Heater Thermostat
Thermistor
Erase Lamp
(Lower)
Erase Lamp
(Upper, PTL)
D[7:0]
Laser Unit
Transfer
Belt
CTD Sensor
Home Sensor
CRUM B'd
Imaging Unit
Key
TRAY 2 (SCF)
Waste_Toner
CST_empt, MP_empt, Feed, Exit,
M
U
X
FS781
BZB
Reset
IC
+3.3V
Right
Cover
S/W
LVPS
(SMPS)
POWER
CORD
Regul
ator
+1.8V
Le ft
Cover
S/W
+5V
(for LSU, ITB) +5VL
+3.3V
+5V
+24V
Waste Agt. Motor
ADC
Mclk
Vclk
+24VF
Netchip
NET2270
ITB SCL, SDA
SCL, SDA
Deve SCL, SDA
Fuser
Cover
S/W
F
Fan
Fuser