C475 Main Board - Epson STYLUS PHOTO 925 Service Manual

EPSON Stylus Photo 925

2.2.2 C475 MAIN Board

The printer mechanism is controlled by C475 MAIN.
See Figure for the C475 MAIN board block diagram.
CR Encoder
Head
CR Motor
PF Motor
ASF Motor
Cutter Motor
PF Encoder
PE Sensor
CT Sensor
Operating Principles
Printer section
P-ROM Address
Data
(IC9)
CN10
Common
CN9 Q5, 6
Driver(IC18)
CN8
Motor
CN14
Driver(IC13)
Motor E01A27CA
CN13
Driver(IC14)
CPU-ASIC
2in1
(IC11)
Motor
CN11
Driver(IC12)
Motor
CN17
Driver(IC7)
CN12
CN18
CN15
Figure 2-18. Block Diagram for the C475 MAIN Board
Electrical Circuit Operating Principles
C475 MAIN
Printer section
DRAM
CPU V833
(IC10)
(IC1)
SDRAM
(IC4)
Reset
SDRAM
IC
(IC5)
EEPROM
(IC8)
E09A40BA
Flash
ROM
(IC3)
Parallel IF
USB HUB
(IC6)
CF
MAX1602
controller
TypeII
(IC16)
(CN1)
MS/
SSFDC
(CN2)
ASIC
(IC2)
CN4
Preview Monitor
C475PNL
CN5
ISP1161
controller HOST USB IF (CN6)
(IC19)
USB IF(CN3)
Revision A
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