Canon LBP7200Cdn - Overview of the Block

Chapter 2
2-19
F-2-22
T-2-8
2.8.2.2 Overview of the Block
0021-4106
F-2-23
T-2-9
GDI (graphics device interface)
It is a graphical interface used in a Windows environment for printing and screen display (also for the application being in use).
No. Name Description
IC1 ASIC handle the image data
IC3 CPU Controls the board.
IC5 CPU Control the network
IC6 ASIC Serves as an IC for USB device controller, memory controller, main controller, and NIC
interface controller.
IC7 SDRAM Retains image data.
IC11 Flash ROM Network system order firmware storage
IC12 SDRAM Retains image data.
IC2S NVRAM Serves to retain image data.
Monitors printer status
GDI data transmission
from application
Displays on screen
Host computer interface
Canon Advanced Printing Technology
Printer interface
Engine
Print
Print status information
Host computer
Printer
Forms bit images
Analyzes GDI data for
generation of print data
CPU
(IC5)
CPU
(IC3)
ASIC (IC6)
MEMC
DC
controller
PCB
NW I/F
4Kbit
NVRAM
(IC2S)
NIC I/F
Connector
USB
Connector
USB2.0
S
L
I
M
P
W
M
Control
system
Control
system
Video(K)
Video(C)
Video(Y)
Video(M)
J2
J1
J6
16MB
SDRAM
(IC7)
TRANSCEIVER
IC
ASIC (IC1)
8MB
SDRAM
(IC12)
2MB
Flash ROM
(IC11)