Ricoh G176 Service Manual page 207

ASIC. Contains the dedicated GW controller chips of the shared resources (the CPU,
memory, and HDD hardware) for the copying and printing functions.
CPU. The central processing unit that controls the operation of the controller board.
SD Card Slot. Service slot for firmware version updates, moving applications to other
SD cards, and downloading/uploading NVRAM contents.
SDR SDRAM. The image memory for the printer functions where image compression,
image rotation and other operations are done.
Board Option Slots. One slot (CN714) is available for the optional HDD unit and
another slot (CN704) is available for either the IEEE 802.11b Interface Unit or Gigabit
Ethernet Board.
Flash ROM. Stores the program. Maximum capacity: 32 MB.
USB. The interface for USB 2.0. Supports both low-speed and high-speed modes.
USB support is built into the controller. No installation is required for the USB function.
NIB. The Ethernet interface connection. Ethernet support is built into the controller. No
installation is required for the Ethernet function.
EEPROM. Stores the data for the SP code settings.
NVRAM. The memory that stores the system configuration and other information.
SM 6-5
Board Structure
G176/G177/G176L