Ricoh D093 Service Manual page 61

VDB (Video Drive Board). Controls operation of the LPH (LED Print Head), including the
conversion of video sent to the LPH.
SIF (Scanner Interface). Interfaces with operation of the CIS elements (x5) and corrects sub
scanning. Also manages the A/D conversion of the scanned image data. Image data scanned
by the CIS elements is converted from analog to digital data by the SIF and then sent to the
SIPU for processing.
Operation Panel Boards. Four boards: LCDC, OP-L, Inverter, Touch Panel, OP-R.
LCDC (LCD Controller). Controls the operation panel.
OP-L. (Operation Panel-Left). Relays key presses from keys located on the left side of the
panel. Also contains the LEDs for the left side keys.
Inverter. Mounted under the LCDC, provides the light for the LCD touch panel.
OP-R.. (Operation Panel-Left). Relays key presses from keys located on the right side of
the panel. Also contains the LEDs for the right side keys.
SIPU (Scanned Image Processing Unit). Provided with five RI1001A_BGA components that
do every type of processing of the image data received from the SIF. LUPUS contains the Rapi
I/F functions. Also manages sending and receiving image data between itself and the GW
controller board.
MB (Mother Board). Provides important relay functions 1) for the Rapi Bus I/F between the
SIPU, GW controller, file format converter, and VLB, and 2) for machine power supply.
CTL (GW Controller. Performs overall control of all multi-function peripheral (MFP) devices.
SM 2-19
Overview
D093/D094