Canon LBP5050 Series Service Manual page 44

Chapter 2
NIC I/F
Connector
J2
USB
Connector
J1
No.
IC1 ASIC
IC3 CPU
IC5 CPU
IC6 ASIC
IC7 SDRAM
IC11 Flash ROM
IC12 SDRAM
IC2S NVRAM
J8
J6
J7
2-18
16MB
TRANSCEIVER
SDRAM
IC
(IC7)
8MB
2MB
CPU
Flash ROM
SDRAM
(IC5)
(IC11)
(IC12)
NW I/F
MEMC
USB2.0
ASIC (IC6)
Name
IC2S
IC3
IC11
IC1
4Kbit
NVRAM
(IC2S)
Control
CPU
system
(IC3)
Control
system
S P
L W
I
M
M
ASIC (IC1)
F-2-23
T-2-10
handle the image data
Controls the board.
Control the network
Serves as an IC for USB device controller, memory controller, main controller, and NIC
interface controller.
Retains image data.
Network system order firmware storage
Retains image data.
Serves to retain image data.
IC5
IC12
IC6
F-2-24
DC
controller
PCB
Video(K)
Video(C)
Video(Y)
Video(M)
J6
Description
J2
J1
IC7