C408/C498 Main Board - Epson Stylus Photo895 Service Manual

EPSON Stylus PHOTO 895/785EPX/915/825

2.2.2 C408/C498 MAIN Board

The printer mechanism is controlled by C408/C498 MAIN.
See Figure for the C408/C498 MAIN board block diagram.
CN9
Head
CN8
CN13
CR Motor
CN12
PF Motor
CN11
ASF Motor
CN4
HP Sensor
CN5
PE Sensor
Operating Principles
Printer section
D-RAM4M
P-ROM
Address
(IC3)
D-RAM16M
Data
Common Driver
Q5, 6
(IC12)
E01A22C*
CPU-
Motor Driver
ASIC2in1
(IC9)
(IC2)
EEPROM
Motor Driver
(IC11)
Motor Driver
(IC10)
Figure 2-19. Block Diagram for the C408/C498 MAIN Board
Electrical Circuit Operating Principles
C408/C498 MAIN
Printon section
SDRAM
(IC5) Address
(IC18)
Data
(IC4)
Flash ROM
(IC24)
Reset IC
(IC6)
Parallel IF
USB HUB
IC
(IC20)
CPU V832
(IC15)
CN1
PCMCIA
Socket power
PCMC
controller
IA
(IC23)
E05B75B*
ASIC1
(IC22)
CN7
E09A31A*
ASIC2
CN2
(IC17)
Preview monitor
Monochrome
CN14
CN3 USB IF
Revision B
Printer
PNL
PNL
48