Circuit Block Diagram - Epson Stylus PhotoR280 Service Manual

EPSON Stylus Photo R280/R285/R290

2.2.3 Circuit Block Diagram

C691 Panel Board
C691 PSB/PSE Board
Chapter 2 Operating Principles
Data
Flash-ROM
(IC1) Address
SDRAM Data
(IC2)
Address
CPU-ASIC
(IC5)
RESET IC
(IC3)
EEPROM
(IC6)
Serial
Flash-ROM
(IC4)
CN5
USB
(CN1)
CN3
Figure 2-3. Circuit Block Diagram for R280/R285/R290
2.2 Electrical Circuit Operating Principles
CN14
Motor Driver
CN13
(IC8)
CN8
CN7
CN6
CN4
CN10
Head Driver
QM1,QM2 CN11
(IC7)
CN12
CN16
CN15
CN17
Revision B
CR Motor
PF Motor
PF Encoder Sensor
APG Sensor
PE Sensor
CDR Guide Sensor
CDR Tray Sensor
Print Head
CR Encoder Sensor
PW Sensor
CR contact module
Cover Open Sensor
25