Ricoh G147 Service Manual page 330

The controller controls all applications. To add the optional applications, an SD card must be
inserted in the SD card slot of the controller.
Trumpet ASIC: Contains the dedicated GW controller chips of the shared resources (the
CPU, memory, and HDD hardware) for the printing function.
CPU. The central processing unit that controls the operation of the controller board.
HDD. The interface for connection of the flat film cable connection to the HDD unit.
SD (Bootable C3). Service slot for firmware version updates, moving applications to
other SD cards, and downloading/uploading NVRAM contents.
DDR SDRAM. The image memory for the printer function where image compression,
image rotation and other operations are done.
Quena ASIC: Controls the following functions: USB, Ethernet, PCI (optional boards for
Wireless LAN, Centronics, and Gigabit Ethernet), debug serial, I2C, applications on SD
cards mounted in an SD card slot, and the energy save features.
SD. This is the interface for SD card slot.
Board Option Slots 1, 2. Only one of the following options can be installed in either Slot
1 or Slot 2: IEEE1284 Interface Board (Centronics), IEEE802.11b G813 (Wireless LAN).
Flash ROM. Stores the program. Maximum capacity: 32 MB.
USB. Built into the controller. Provides the interface for USB 2.0 devices. Supports both
low-speed and high-speed modes.
NIB. The Ethernet interface connection. Network support is built-into the controller.
EEPROM. Stores the data for the SP code settings.
NVRAM. The memory that stores the system configuration and other information.
HDD: A 3.5" HDD (more than 40 GB) can be connected using an IDE I/F. The hard disk
is partitioned as shown below.
How 40 GB Is Partitioned on the HDD
Item
File Sys 1
File Sys 2
File Sys 3
G147
Use
Font download, form
registration
Job spooling
Print time recording
At Power
Space
OFF
500
Saved
MB
1 GB
500
Erased
MB
6-8
Max. Max.
Files Pages
6600 ---
--- 5000 ---
1000 ---
SM