Epson Stylus Color 1520 Service Manual

Operating Principles
Rev. A
2-1
9
CLK
SD I/O
Data Bus
DRAM(4M)
(IC10)
Address Bus
Timer
Counter IC
RTC-45436A
(IC3)
CPU
C90A02CB
(IC7)
GA
E05B33
(IC6)
MROM
(IC13)
P-ROM(8M)
(IC14)
P-ROM(4M)
(IC11)
MROM
(IC12)
M
From IC5
M
+42VDC
+5VDC
Type-B
I/F
+5V
DRAM(4M)
(IC9)
GA
E05B34
(IC5)
PSC
Power Line
Reset IC
M51955BFP
(IC4)
Logic Line
Reset IC
RST592D
(IC1)
EEPROM
LE93C56
(IC2)
From IC6
From IC6
+5V
+42V
+5V
PE, Cover Open,
REL Sensors
HP, DE Sensors
Black/Color
Control Signals
PF Motor
Control Signal
Parallel I/F
Serial I/F
Control Panel
CR Motor Control
Head
Temperature
Lithium Battery
From IC6
Black/Color Head
Common Driver Circuit
Nozzle Selection Signal
PF Motor
Driver Circuit
UDN2917EB (IC16)
Carriage
CR Motor Driver Circuit
SLA7043M (IC17)
CR Motor
PF Motor
Nozzle
Selection IC
Black Head
128 Nozzles
Color Head
64 Nozzles
Nozzle
Selection IC
Figure 2-19. Control Circuit Block Diagram

Epson Stylus Color 1520 Specifications

General

Color	Yes
Maximum resolution	600 x 1200 DPI
Print speed (black, normal quality, A4/US Letter)	- ppm
Maximum input capacity	100 sheets
Envelopes sizes	10, C5, DL
Standard media sizes	4\
Paper tray media types	Envelopes, Labels, Plain paper
Non-ISO print media sizes	Legal
ISO A-series sizes (A0...A9)	A4
ISO B-series sizes (B0...B9)	B5
Power requirements	120V AC, 50/60 Hz
Printing noise level	45 dB
Maximum operating temperature range (T-T)	-20 - 60 °C
Market positioning	Home & office