Canon i-SENSYS LBP5300 Series, Service Manual

Page: 78 / 150

Chapter 2
2-42
F-2-51
2.8.3.3 Outline of the Block
0014-5719
i-SENSYS LBP5300
F-2-52
T-2-7
No. Name Description
IC3 CPU Controls the board.
IC5 Reset IC Resets the board.
IC7 ASIC Serves as an IC for USB device controller, memory controller, video controller, and NIC
interface controller.
IC8 SDRAM Retains image data.
IC9 SSCG Performs clock modulation. Generates modulation clock signals used by the system
clock.
IC11 ASIC Converts image data from the ASIC into data by pulse width modulation.
IC2S NVRAM Serves to store various parameters.
HDD (optional)
DC controller PCB
PDL data
Display List
Bitmap
Bitmap
Video controller PCB
PCL printer
driver
Color image
processing
circuit
Display list
generation
circui
Compression/
decompression
circuit
Bit map conversion
Compression data
16MB
SDRAM
(IC8)
CPU
(IC3)
ASIC (IC7)
MEMC
DDI-L
Connector
DC
controller
PCB
USB2.0
CORE
4Kbit
NVRAM
(IC2S)
USB
Connector
(4pin)
NIC I/F
Connector
(44pinTall) NICC Ella NIC
External
device
S
L
I
M
P
W
M
Control
system
Control
system
Video(K)
Video(C)
Video(Y)
Video(M)
J2
J3
J4
Reset IC
(IC5)
ASIC (IC11)
S
H
I
P