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%ORFNGLDJUDP
$ 2YHUDOOEORFNGLDJUDP
Carriage Unit
CCD PWB
12V
R
G
8bits (MSB/LSB)
B
VCL
5VEN
PSW, SELin
ADCCLK
Kin
BSAMP, VSAMP
SDI, SCLK, LOAD
∅1, ∅2, ∅TG, ∅TG2, ∅TG3
∅RB, ∅CLB, ∅1L
3.3V
Clock,Data,
LATCH
CCD
( uPD8861)
AFE(AD9826)
C
D
S
A
G
C
M
P
X
AD
16bits
CCD Driver
Operation PWB
SDRAM
(8MB)
CCFL
Lamp
Inverter
I/F PWB
(Optional)
ASIC Reset
IEEE 1284 I/F
3.3V
A[9
1]
USB I/F
D[15
0]
MMD
LSU UNIT
VFM
Main Motor
PMD
TM+, TM–
ASIC
CPU
H8S/2320
I
E
E
E
1
2
8
4
Laser
I/F PWB
Polygon Motor
OSC
(24MHz)
OSC
(13.9867MHz)
Other Loads
<ASIC I/O>
MPFS, RRS, HL, PR FAN Motor
SGS, SRRC, SPUS, SPPS,
TC, GRIDL, MC, BIAS
MPFS, CPFS2, Toner Motor Scanner Motor
CPFS1
Other Inputs
CPU INTERRUPT
PMCLK
MHPS, SPPD
CPU I/O
RTH
PPD1, POD, MFD, CED1, TCS,
DVS1, PPD2, PPD3, CED2, DSWS
SDSW, SPID, SDOD, DRST
MultiPlexed
MCU PWB UNIT
I2C Bus
A[16..0]
D[15
8]
A[19..0] D[15..0]
A[19
0]
D[15 0]
Power Reset
3.3V
3.3V/5V/
5VEN/12V
24V
CPU
H8S/2320
(19.6608MHz)
EEPROM
(2Kb)
Reset IC
SRAM
(1Mb x 1)
ROM
(4Mb)
Power Supply Unit
(Low Power/High Power)
SPMT0/1/2/3
ADF Motor
U
S
B
1
.
1
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