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EPSON Stylus Pro 7600/9600 Revision A
Operating Principles Outline of Control Circuit Board 119
2.3 Outline of Control Circuit Board
This section describes the operation of C472MAIN Board, which controls and drives
the printer mechanism of Stylus Pro 7600/9600.
NOTE: For details of each circuit, refer to Chapter 7 Appendix (p.281)
.
Explanation of major elements on C472MAIN Board
Note "*": Stylus Pro 7600: IC4/6 only (32MByte)
Stylus Pro 9600: IC4/6 and IC600/601 (64MByte)
Figure 2-20. C472MAIN Board-Circuit Block Diagram
Table 2-8. Major Elements
Name/Code Location Function
SH-3
HD6417709A
IC10
32 bit RISC-CPU
• Drive clock frequency = 100 MHz
CY24242PVC IC602
System clock controller
•CPU clock
• SDRAM clock
• Clock for I/O control
E09A42AA IC607
Custom ASIC
1. Print data processing
• Rasterizer
• Head drive control
2. Mechanism control (motors and solenoids)
3. Sensor control
E05B80CD IC35
Custom ASIC
• External I/O control
IEEE1284 (bidirectional parallel) I/F
Type-B port
E09A41RA IC34
Custom ASIC
• Head drive voltage waveform generation control
E05C02BA IC603
Custom ASIC
• USB-I/F (2.0) control
Flash Memory IC9
Flash Memory (16Mbit)
• For storage of control program (firmware)
• Saving of various setting parameters and control
information
SD-RAM
IC4/6
IC600/601
System memory
*
128mbit x 16
L6203 IC31/32
PF/CR Motor Drivers IC
• PWM constant current drive control
LB11847 IC30
Pump Motor Driver IC
Block01.eps