Epson Stylus Color 670 Service Manual

EPSON Stylus COLOR 670 Revision A
Operating Principles Electrical Circuit Operating Principles 45
2.2.2 C301MAIN Board
The printer mechanism is controlled by C301MAIN. The 3.3V regulator IC 16 is
mounted on the MAIN board and generates +3.3V from 5V. +3.3V is to drive
the main elements on the logic circuit.
See Figure 2-13 for the C301MAIN board block diagram.
Figure 2-13. Block Diagram for the C301MAIN Board
C209 PNL (Stylus Photo 720)
P-ROM
(IC3)
D-RAM
(IC17)
3.3V
Regulator
IC (IC16)
Power
CN10
CPU
HD64F232
8F (IC1)
Parallel I/F
Receiver IC
74LV161284
(IC9)
E05B70**
(IC2)
USB I/F
Receiver
IC (IC10)
CN3
CN5
CN4
CN6
CN11
Timer &
Reset IC
(IC5)
EEPROM
(IC6)
Common
Driver
(IC15)
Q2 & Q3
CN8 HD FFC
CN9 HD FFC
CR Sensors
Head
Motor
Driver
(IC13)
Motor
Driver
(IC14)
CN7
CR Motor
CN12
PF Motor
ASF HP Sensor
HP Sensor
PE Sensor
CR1
Data
Address
CN1 Parallel
Batt1
ASIC

Epson Stylus Color 670 Specifications

General

Brand	Epson
Model	Stylus Color 670
Category	Printer
Language	English