Chapter 1 Overview - Konica Minolta IP-423 Service Manual

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Chapter 1 Overview

G
Principle of Operation
The IP-422/423 includes 64 MB of RAM as standard so that it can rasterize image data for subsequent
pages while it is sending the rasterized image date for the current page to the print engine. The memory can
also be expanded to accommodate the processing of very complex print data. This system means that the
print engine can comfortably process print jobs consisting of many pages without interruption, to achieve effi-
cient and effective printing.
The print controller system software runs on VxWorks from Wind River and is included in the standard Com-
pact Flash memory.
The scanned data is sent to computers via the standard Ethernet network interface.
The transmission and reception of scanned data between the print controller and the print engine performed
by the built-in engine interface (video interface).
In addition, the serial interface provides access to the system in the print controller.
IP-422 Overall Block Diagram
Serial I/F
(CN11)
BIOS Flash ROM
(BIOS 1MB)
PS (Protection Chip)
System Board
1-4
Service Port
CPU
Driver
ELAN SC520-133MHz
(PBGA 344pin)
D8 D16
(PS-343) D8 D16
Buffer
D16
Network Control Section
D32
CN1
D32
D32
Parallel I/F Block
Buffer
KPC01
EMI • Fil
PCI • PCI Bridge Block
PPBC PCI
2000 PAL
Compact Flash
Memory
CN6
(16MB or 32MB)
PCMCIA Hard Disk
CN7
(1.8 Inch HDD)
Network
Control CPU
D16
(NCC-40)
Network Control CPU
(Flash ROM : 1MB)
512K x 16
Standard Memory
16M x 16 x 2pcs.
(64MB)
Optional Memory
16M x 16 x 2pcs.
(MU-411 : 64MB)
Parallel I/F
(CN2)
Engine I/F
(CN3)
Network I/F
10/100
CN9 BaseT(X)
D16 D8
Network Memory Network Control ROM
(DRAM : 4MB) (EEPROM : 64KB)
1M x 16 x 2pcs. 8K x 8