Oki IP-6620 - 8.8 Description of the Electrical Section

OKI Data Infotech Corporation CONFIDENTIAL
Chapter 8 Operation Mechanism
8-22
8.8 Description of the Electrical Section
 Print heads
Six or seven print heads are installed in the printer. They are equipped with PZT actuators for
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: Employs SH-3
- Memory: Main memory (SDRAM), flash memory (boot program, system
program, test patterns, engine parameters backup, and FPGA
configuration data)
- Host interface: Supports USB 2.0 Hi-Speed
- USB memory interface: Supports USB 2.0 Hi-Speed
- Print data processing: Uses FPGA-ATG and FPGA-RSM
- Operation panel control: Operation panel interface function
- FPGA-BTC: 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: 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: FPGA-RSM is a FPGA with horizontal/vertical conversion and
image data masking functions. The configuration data can be
rewritten using a USB drive.