Ricoh Aficio 270 - After Replacement; Block Diagram

BLOCK DIAGRAM
A265/A267 1-2 SM
1.3 BLOCK DIAGRAM
• The Flash ROM contains NIB firmware. The firmware can be upgraded over the
network or from an IC card connected to the controller.
• The EEPROM holds all the NIB settings. Before replacing the NIB, the EEPROM
data can be backed up in the controller memory, and restored to the new NIB
after replacement.
CPU
MC68340PV
25.166MHz
Bridge
AG1001V
MAC
Am79C971
PHY
ICS1890
SRAM
RJ-45
Controller
Board
Network
DRAM
2MB
ASIC
DISCII
Flash ROM
2MB
EEPROM
OPTION
I/F
B307V501.WMF