EPSON Stylus PHOTO 810/820/830

Revision B

2.2.3.1 Main Elements

Table 2-10shows the function of the each main elements on C483/C484 Main-B board.

Table 2-10. Main elements (Stylus C61/C62)

IC

Location

Function

 

 

 

CPU

IC8

CPU mounted on the MAIN board is driven by clock

E01A37**/39**

frequency 48 MHz, 24MHz and controls the printer.

 

 

 

 

DRAM

IC1/IC2

Bus= 16 bit, 4M/16Mbit DRAM

 

 

 

 

 

1kbit EEPROM

EEPROM

IC5

Default value setting

 

 

Parameter backup

 

 

 

Reset Regulator IC

 

Reset IC

IC3

• For +5V; reset when +4.2V is detected

BN6150F-E2

 

• For +42V, reset when +35.8V is detected

 

 

 

 

 

Common Driver

IC10

Head drive control HIC

E09A29LA

• Generates head common voltage.

 

 

 

 

Motor Driver

IC6

PF/CR motor drive IC

 

 

 

 

Parallel I/F IC

 

 

 

SN74LVCZ16128

IC7

IEEE1284 parallel I/F transceiver IC.

4AGT

 

 

 

 

 

 

 

Operating Principles

Electrical Circuit Operating Principles

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