Oki IP-6620 Maintenance Manual page 543

8.8 Description of the Electrical Section

Print heads
Six or seven print heads
the 508 nozzles.
The heads are connected to the carriage board (HCB1M) via 40-core cables.

Controller board (PCB-ASSY-IPB5-100)
The controller board controls the whole printer, and allows the following capabilities.
- CPU:
- Memory:
- Host interface:
- USB memory interface:
- Print data processing:
- Operation panel control: Operation panel interface function
- FPGA-BTC:
- FPGA-ATG:
- FPGA-RSM:
8-22
are installed in the printer. They are equipped with PZT actuators for
Employs SH-3
Main memory (SDRAM), flash memory (boot program, system
program, test patterns, engine parameters backup, and FPGA
configuration data)
Supports USB 2.0 Hi-Speed
Supports USB 2.0 Hi-Speed
Uses FPGA-ATG and FPGA-RSM
An FPGA with the capacity to control:
- peripheral access on the IPB5 board; and
- Y servo.
The configuration data cannot be overwritten using a USB
drive. Only starting from the on-board configuration ROM is
possible.
FPGA-ATG is a FPGA with functions to control the USB
interface and the band memory. The configuration data can be
rewritten using a USB drive.
FPGA-RSM is a FPGA with horizontal/vertical conversion and
image data masking functions. The configuration data can be
rewritten using a USB drive.
OKI Data Infotech Corporation CONFIDENTIAL
Chapter 8 Operation Mechanism