Epson 7600 Outline of Control Circuit Board, Major Elements, Name/Code Location Function, Sd-Ram

EPSON Stylus Pro 7600/9600 Revision A

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

Table 2-8. Major Elements

Name/Code	Location		Function
SH-3	IC10	32 bit RISC-CPU
HD6417709A		• Drive clock frequency = 100 MHz
		System clock controller
CY24242PVC	IC602	•	CPU clock
		•	SDRAM clock
		• Clock for I/O control
		Custom ASIC
		1.	Print data processing
E09A42AA	IC607	•	Rasterizer
		•	Head drive control
		2. Mechanism control (motors and solenoids)
		3.	Sensor control
		Custom ASIC
E05B80CD	IC35	•	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 (16Mbit)
Flash Memory	IC9	• For storage of control program (firmware)
		• Saving of various setting parameters and control
			information
SD-RAM	IC4/6	System memory *
	IC600/601	128mbit x 16
L6203	IC31/32	PF/CR Motor Drivers IC
		• PWM constant current drive control
LB11847	IC30	Pump Motor Driver IC

Note "*": Stylus Pro 7600: IC4/6 only (32MByte)

Stylus Pro 9600: IC4/6 and IC600/601 (64MByte)

Block01.eps

Figure 2-20. C472MAIN Board-Circuit Block Diagram

Operating Principles Outline of Control Circuit Board 119