Controller; Base Engine Control Unit (Bcu); Power Supply Unit And High Voltage Unit - Ricoh G157 Service Manual

OVERVIEW

Controller

The controller is the only interface with the copier. The controller receives signals
and data, and sends them to the BCU. The controller supports the following:
• Scanner Unit
• NCU (Network Control Unit)
• Operation Panel
• Standard: IEEE 1284, USB 2.0, IEEE 1394
• Optional: NA
You can install these optional components on the controller:
• SDRAM (64/128/256 MB)

Base Engine Control Unit (BCU)

The BCU examines the power supply and the mechanical components. These
include the optional paper feed unit.

Power Supply Unit and High Voltage Unit

The power supply unit changes alternating electrical current to direct current. The
high voltage unit supplies high-voltage current.
G157 6-6 SM