Devices - Ricoh G031 Service Manual

PRINTER CONTROL BOARD

2.10.2 DEVICES

Devices
CPU
ASIC: ROCKY W
Code ROM
DRAM
EEPROM
Centronics I/F
OPTION I/F
Optional RAM I/F
DIMM I/F
DIP SW
G031/G032
133MHz VR4310
Memory map control
Reset signal
DRAM control
DMA control
FCI control (edge smoothing, toner saving)
Interrupt control
Engine serial communication control
Interval control
Centronics I/F
I/O port
Flash ROM (8 MB) 32 bit
8 MB (16 Mbit DRAM x 4)
2 KB (NVRAM)
Bi-directional parallel interface (standardized by IEEE1284)
G031: 2 slots
RS232C
Ethernet (100 Base-Tx, 10 Base-T)
Hard disk drive
IC Card adapter for up-dating controller firmware (CN3)
G032: 1 slot
Ethernet (100 Base-Tx, 10 Base-T)
Hard disk drive
IC Card adapter for up-dating controller firmware
SIMM x 1 slot, 16 MB or 32 MB SIMM
1 slot
SW No. Setting
OFF
1
ON
2
3
4
2-48
Description
1 2 3 4
– OFF –
Description
Booting from Flash ROM
Booting from IC card using adapter
Not used
Not used
Not used
G031D537.WMF
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